This is part of a collection of lists with the terms used in biological and medical research. Source: public domain CRISP Thesaurus maintained by the Office of Extramural Research at the National Institutes of Health [1] (http://crisp.cit.nih.gov/). Biology studies the variety of life (clockwise from top-left) E. coli, tree fern, gazelle, Goliath beetle Biology is the science of life (from the Greek words bios = life and logos = word). ... See drugs, medication, and pharmacology for substances that are used to treat patients. ... The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ...

Lists of biomedical topics: | # | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z These are collection of lists with the terms used in biological and medical research. ... This is a list of terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ... This is part of a collection of lists with the terms used in biological and medical research. ...

N acetyl glutamate synthetase deficiency -- N acetyl glutamate synthethase deficiency -- N acetyl L glutamate -- N acetylgalactosamine -- N acetylglucosamine -- N acetylglucosaminidase -- N acetylhexosamine -- N acetylneuraminate -- N acylaminoacid -- N acylation -- N alkylaminoacid -- N arachidonoyl 2 hydroxyethylamide -- N cadherin -- N carbamoylaminoacid -- N glycosidase -- N hydroxyacetylaminofluorene -- N hydroxylation -- N methyl D aspartate -- N methyl D aspartate receptor -- N methyl N' nitro N nitrosoguanidine -- N methylaminoacid -- N methylnicotinamide -- N phosphonoacetyl L aspartate -- N-acetylhomotaurine -- N13 isotope -- N15 isotope -- Na+ ion -- Na+ K+ ATPase -- Na+ K+ transporting ATPase -- Na/H exchanger -- Na24 isotope -- NAD -- NAD analog -- NAD glycohydrolase -- NAD kinase -- NAD nucleosidase -- NAD phosphate -- NAD transhydrogenase -- [[NAD(+) ADP ribosyltransferase]] -- NAD(H) analog -- NAD(H) phosphate -- NAD(P) transhydrogenase -- NAD(P)H dehydrogenase -- NAD(P)H oxidoreductase -- NADase -- NADH -- NADH analog -- NADH dehydrogenase -- NADH oxidoreductase -- NADH phosphate -- nadolol -- NADP -- NADP transhydrogenase -- NADPH -- NADPH cytochrome c2 reductase -- NADPH dehydrogenase -- NADPH diaphorase -- NADPH oxidase -- NADPH oxidoreductase -- Naegleria -- nagana -- nagarse -- nagarse proteinase -- nail -- nail patella syndrome -- Nairobi sheep disease virus -- Nairovirus -- nalorphine -- naloxone -- naltrexone -- naltrindole -- named group -- nandrolone -- Nanirnavirus -- nanomedicine -- nanotechnology -- naphtha -- naphthalene -- naphthol -- naphthoquinone -- naphthylamine -- naphthyridine -- Naprosyn -- naproxen -- narcissine -- narcolepsy -- narcotic -- narcotic antagonist -- Nariva virus -- nasal -- nasal airflow measurement -- nasal bone -- nasal decongestant -- nasal disorder -- nasal epithelium -- nasal neoplasm -- nasal vasoconstrictor -- nasogastric feeding -- nasopharyngeal neoplasm -- nasopharynx -- Native American -- native immunity -- natriuresis -- natriuretic -- Natronobacterium -- Natronococcus -- natural gene amplification -- natural history of disease -- natural immunity -- natural killer cell -- natural product -- natural resistance -- natural selection -- nature restorative -- nature therapy -- nature versus nurture -- naturopathy -- nausea -- Nautilus -- naxagolide -- NCAM -- Ndumo virus -- NDV -- near field microscopy -- near infrared spectrometry -- near infrared spectroscopy -- near vision -- nearsightedness -- neck -- neck cancer -- neck injury -- neck neoplasm -- necrocytosis -- necropsy -- necrosin -- necrosis -- Necrovirus -- Necturus -- needle giving program -- needle sharing -- Neethling virus -- nef gene -- negative reinforcement -- neglected child -- Neisseria gonorrhoeae -- Neisseria meningitidis -- Neisseria meningitidis vaccine -- Neisseriaceae -- nelfinavir -- Nelson Bay virus -- NEM (N ethylmaleimide) -- Nematoda -- nematode antigen -- nemotode genetics -- neocarzinostatin -- neocortex -- neomycin -- neon -- neonatal animal -- neonatal death (human) -- neonatal human -- neonatal hypoprothrombinemia -- neonatal hypoxia -- neonatal intensive care -- neonatal mortality (animal) -- neonatal mortality (human) -- neonatal transient jaundice -- neonate -- neopallium -- neoplasm -- neoplasm /cancer classification /staging -- neoplasm /cancer relapse /recurrence -- neoplasm /cancer remission /regression -- neoplasm blood supply -- neoplasm chemotherapy -- neoplasm classification -- neoplasm diagnosis -- neoplasm education -- neoplasm epidemiology -- neoplasm genetics -- neoplasm heat therapy -- neoplasm immunodiagnosis -- neoplasm immunology -- neoplasm immunoradiotherapy -- neoplasm immunotherapy -- neoplasm invasiveness -- neoplasm location -- neoplasm nutrition therapy -- neoplasm pain -- neoplasm palliative care -- neoplasm palliative treatment -- neoplasm pharmacology -- neoplasm pharmacotherapy -- neoplasm photoradiation therapy -- neoplasm progression -- neoplasm radiation therapy -- neoplasm radiodiagnosis -- neoplasm radioimmunotherapy -- neoplasm radionuclide diagnosis -- neoplasm radionuclide therapy -- neoplasm recurrence -- neoplasm registry -- neoplasm regression -- neoplasm relapse -- neoplasm remission -- neoplasm resource -- neoplasm seeding -- neoplasm site -- neoplasm staging -- neoplasm sulfated glycoprotein -- neoplasm surgery -- neoplasm therapy -- neoplasm thermotherapy -- neoplasm transplantation -- neoplasm type -- neoplasm vaccine -- neoplasm vascular supply -- neoplastic cell -- neoplastic cell culture for noncancer research -- neoplastic growth -- neoplastic progression -- neoplastic transformation -- neoprene -- Neopvirus -- neoral -- Neorickettsia -- neostigmine -- neosynephrine -- neotenin -- neovascularization -- nephelometry -- nephrectomy -- nephritis -- nephroblastoma -- nephrocalcinosis -- nephrogenesis -- nephrogenic diabetes insipidus -- nephrolith -- nephrolithiasis -- nephron -- nephrosclerosis -- nephrosis -- nephrotic syndrome -- nephrotoxicity -- neprilysin -- nerve -- nerve agent -- nerve cell -- nerve decompression -- nerve ending -- nerve gas -- nerve growth factor -- nerve injury -- nerve protein -- nerve sheath neoplasm -- nerve stem cell -- nerve threshold -- nervous exhaustion -- nervous system -- nervous system carcinoma -- nervous system development -- nervous system disorder -- nervous system disorder chemotherapy -- nervous system disorder diagnosis -- nervous system disorder epidemiology -- nervous system disorder pharmacotherapy -- nervous system disorder therapy -- nervous system imaging -- nervous system infection -- nervous system neoplasm -- nervous system prosthesis -- nervous system regeneration -- nervous system transplantation -- nervous system visualization -- Netherlands -- netropsin -- neural -- neural canal -- neural cell adhesion molecule -- neural cell body -- neural conduction -- neural control -- neural control of vascular smooth muscle -- neural crest -- neural degeneration -- neural facilitation -- neural fasciculation -- neural function -- neural growth associated protein -- neural information processing -- neural inhibition -- neural initiation -- neural lymphomatosis (avian) -- neural manifestation -- neural network -- neural network (biological) -- neural network (computer simulation of nervous system) -- neural network (computer) -- neural pathway -- neural plasticity -- neural plate -- neural prosthesis -- neural recruitment -- neural regeneration -- neural regulation -- neural tract -- neural transmission -- neural tube -- neural tube defect -- neuraminate -- neuraminidase -- neurasthenia -- neuregulin -- neurilemma -- neurilemmoma -- neurinoma -- neurite -- neuritic plaque -- neuritis -- neuroanatomy -- neurobehavior -- neurobehavioral test -- neurobiology -- neuroblast -- neuroblastoma -- neurochemistry -- neurocognitive test -- neurocytology -- neurodegeneration -- neurodermatitis -- neurodevelopment -- neuroeffector -- neuroendocrine system -- neuroendocrinology -- neurofibril -- neurofibrillary tangle -- neurofibroma -- neurofibromatosis -- neurofibromatosis type 1 gene -- neurofibromatosis type 1 protein -- neurofibromin -- neurofilament -- neurofilament protein -- neurogenesis -- neurogenetics -- neurogenic hypertension -- neurogenic shock -- neurogenic urinary bladder disorder -- neuroglia -- neurohormone -- neurohumor -- neurohumor biosynthesis -- neurohypophyseal hormone -- neurohypophysis -- neuroimaging -- neuroimmunology -- neuroimmunomodulation -- neurokinin 1 -- neurokinin 1 receptor -- neurokinin A -- neurokinin B -- neuroleptic -- neurologic examination -- neurologic manifestation -- neurological disease -- neurology -- neurolymphomatosis -- neurolymphomatosis (fowl) -- neuroma -- neuromast -- neuromatosis -- neuromedin B -- neuromedin K -- neuromodulator -- neuromodulin -- neuromotor system -- neuromuscular activity -- neuromuscular blocking agent -- neuromuscular disorder -- neuromuscular disorder chemotherapy -- neuromuscular disorder diagnosis -- neuromuscular disorder pharmacotherapy -- neuromuscular disorder therapy -- neuromuscular examination -- neuromuscular function -- neuromuscular junction -- neuromuscular manifestation -- neuromuscular stimulator -- neuromuscular system -- neuromuscular transmission -- neuron -- neuron cell body -- neuron component -- neuron loss -- neuronal cell body -- neuronal ceroid lipofuscinosis -- neuronal circuitry -- neuronal circuitry database -- neuronal guidance -- neuronal transport -- neuronitis -- neuropapillitis -- neuropathic muscular atrophy -- neuropathology -- neuropeptide -- neuropeptide receptor -- neuropeptide Y -- neuropharmacologic agent -- neuropharmacology -- neurophysin -- neurophysiology -- neuropil -- neuropilin -- neuroplasticity -- neuroprosthesis -- neuroprotectant -- neuroprotection -- neuropsychological test -- neuropsychology -- neuroreceptor -- neuroregulation -- neuroregulator -- neuroscience -- neurosecretory system -- neurosis -- Neurospora -- neurosurgery -- neurotensin -- neurotoxicity -- neurotoxicology -- neurotoxin -- neurotransmission -- neurotransmitter -- neurotransmitter agonist -- neurotransmitter antagonist -- neurotransmitter biosynthesis -- neurotransmitter inhibitor -- neurotransmitter metabolism -- neurotransmitter receptor -- neurotransmitter release -- neurotransmitter reuptake -- neurotransmitter transport -- neurotransmitter uptake -- neurotrophic factor -- neurotrophin -- neurotropic drug -- neurotropic virus -- neurotropin -- neutral endopeptidase -- neutral red -- neutralizing antibody -- neutron activation analysis -- neutron antineoplastic therapy -- neutron beam therapy -- neutron capture therapy -- neutron diffraction -- neutron radiation -- neutropenia -- neutrophil -- neutrophil elastase -- neutrophin -- nevirapine -- nevus -- nevus elasticus -- New Guinea -- New World Arenavirus -- New World monkey -- New Zealand -- newborn animal -- newborn human (0-6 weeks) -- newborn hypoprothrombinemia -- newborn pneumonitis virus -- Newcastle disease virus -- newt -- nexin -- nexin (microtubular) -- nexin (protease inhibitor) -- NF kappaB -- NF kB -- NF1 gene -- NF1 GRP -- NF1 protein -- NFKB -- NFP -- NFT -- NFV -- NGF -- NGF2 -- NHE -- NHE1 -- NHE2 -- niacin -- niacinamide -- Nicaraguan -- nicardipine -- nickel -- nicking closing enzyme -- nicotinamide -- nicotinamide adenine dinucleotide -- nicotinamide ribotide -- nicotinate -- nicotine -- nicotine craving -- nicotine gum -- nicotine patch -- nicotine replacement -- nicotinic receptor -- nictitating membrane -- nidation -- NIDDM -- nidogen -- Niemann Pick disease -- nifedipine -- night blindness -- nightly tidal peritoneal dialysis -- nightmare -- nigrostriatum -- nimodipine -- Nipah virus -- Nippostrongylus -- NIR spectroscopy -- Nissl bodies -- nitrate -- nitrate reductase -- nitration -- nitrendipine -- nitrene -- nitric oxide -- nitric oxide synthase -- nitrification -- nitrile -- nitrite -- nitro compound -- nitroalkane -- nitroalkene -- nitrobenzene -- nitroferricyanide -- nitrofuran -- nitrofurantoin -- nitrofurazone -- nitrogen -- nitrogen balance -- nitrogen compound -- nitrogen dioxide radical -- nitrogen fixation -- nitrogen metabolism -- nitrogen mustard -- nitrogen narcosis -- nitrogen oxide -- nitrogenase -- nitrogenous group transferase -- nitrogenous heterocyclic compound -- nitroglycerin -- nitrone -- nitrophenol -- nitroprusside -- nitrosamide -- nitrosamine -- nitroso compound -- nitrosobenzene -- nitrosoguanidine -- nitrosourea -- nitrous acid -- nitrous oxide -- nizoral -- NK cell -- NMB -- NMDA -- NMDA (N methyl D aspartate) -- NMDA receptor -- NMDA receptor antagonist -- NMR -- NMSO3 -- NO synthase -- Nocardia -- Nocardia asteroides -- Nocardiaceae -- nocardiosis -- nociceptin -- nociception -- nociceptor -- Noctuidae -- nocturnal focal lobe epilepsy -- NOD mouse -- Nodaviridae -- node of Ranvier -- NOE (nuclear Overhauser enhancement) -- NOESY -- nogalamycin -- noise -- noise biological effect -- noise induced deafness -- noise perception -- noise pollution -- nolvadex -- nomenclature -- nonallergen related irritant -- nonallergic dermatitis -- nonbiological electronic recording system -- nonbiological magnetic recording system -- nonbiomedical equipment -- nonblood lipoprotein -- nonblood rheology -- nonchromosomal DNA -- noncytopathogenic virus -- nondisjunction -- nondrug contraceptive -- nondrug therapy -- nonelectrolyte transport -- nonEnglish language -- nonenzymatic glycosylation -- nonenzyme proteolytic agent -- nonesterified fatty acid -- nonheme iron protein -- nonhistone nucleoprotein -- nonHodgkin's lymphoma -- nonhuman primate -- nonhuman therapy evaluation -- nonhuman tissue -- noninsulin dependent diabetes mellitus -- noninvasive diagnosis -- nonmammalian vertebrate embryology -- nonmetal alkali -- nonmicrobial somatic antigen -- nonocular refractometry -- nonoxinol 9 -- nonoxynol 9 -- nonpathogenic Escherichia coli -- nonplant contact dermatitis -- nonpollutant insect control -- nonradiation isotope effect -- nonsister chromatid exchange -- nonsmall cell lung cancer -- nonsteroidal antiinflammatory agent -- nonsurgical revascularization -- nontherapeutic iontophoresis -- nontropical sprue -- nonverbal communication -- nonvisual photoreceptor -- nonvisual photosensitivity -- nonwater solvent -- noradrenaline -- noradrenergic -- norepinephrine -- norethindrone -- normal ossification -- normal respiratory airway resistance -- normetanephrine -- normotensive -- Norplant -- Norrie's disease -- norsteroid -- North America -- northern blotting -- northern hybridization -- northern Native American -- nortriptyline -- Norvasc -- norvir -- Norwalk agent -- Norwalk gastroenteritis -- Norwalk virus -- Norway -- NOS -- nose -- nose disorder -- nosocomial infection -- nosocomial infection control -- nosology -- novobiocin -- NPY -- NRG protein -- NSAIDS -- NSCLC -- NT3 (neurotropin 3) -- NTF -- NTPD (nightly tidal peritoneal dialysis) -- nuclear chemistry -- nuclear envelope -- nuclear factor kappa beta -- nuclear magnetic resonance spectroscopy -- nuclear matrix -- nuclear medicine -- nuclear membrane -- nuclear polyhedrosis virus -- nuclear pore complex -- nuclear power -- nuclear protein -- nuclear receptor -- nuclear runoff assay -- nuclear scaffold -- nuclear transfer -- nuclear transplantation -- nuclease -- nuclease (general) -- nuclease IV -- nuclease protection assay (DNA) -- nuclease protection assay (RNA) -- nucleic acid -- nucleic acid amplification technique -- nucleic acid analog -- nucleic acid binding protein -- nucleic acid biosynthesis -- nucleic acid chemical synthesis -- nucleic acid cloning -- nucleic acid denaturation -- nucleic acid detection -- nucleic acid hybridization -- nucleic acid inhibitor -- nucleic acid localization -- nucleic acid mapping -- nucleic acid metabolism -- nucleic acid methylation -- nucleic acid probe -- nucleic acid purification -- nucleic acid quantitation -- nucleic acid reconstitution -- nucleic acid repetitive sequence -- nucleic acid sequence -- nucleic acid sequence based amplification -- nucleic acid sequencing -- nucleic acid stability -- nucleic acid structure -- nucleic acid vaccine -- nucleobase -- nucleobase analog -- nucleocapsid -- nucleolar organizing region -- nucleolus -- nucleophilic addition -- nucleophilic substitution -- nucleoprotein -- nucleoside -- nucleoside analog -- nucleoside diphosphatase -- nucleoside diphosphate -- nucleoside diphosphate kinase -- nucleoside inhibitor -- nucleoside monophosphate -- nucleoside phosphate kinase -- nucleoside phosphorylase -- nucleoside ribosyltransferase -- nucleoside sulfate -- nucleoside triphosphate -- nucleosome -- nucleotidase -- nucleotide -- nucleotide analog -- nucleotide binding fold -- nucleotide metabolism -- nucleotide phosphohydrolase -- nucleotide protein interaction -- nucleotide sequence -- nucleotide sulfate -- nucleotidyl cyclase -- nucleotidyltransferase -- nucleus accumbens -- nucleus and cytoplasm volume relationship -- nucleus dentatus -- nucleus reticularis -- nucleus tractus solitarius -- NUD (nonulcer dyspepsia) -- nude mouse -- Nudibaculovirinae -- nudibranch -- null cell -- number sense -- nurse -- nurse patient relations -- nurse performance -- nurse practitioner -- nurse role -- nursery -- nursery school -- nurses aid -- nursing -- nursing administration -- nursing care -- nursing care evaluation -- nursing care quality -- nursing caries -- nursing diagnosis -- nursing education -- nursing home -- nursing intervention -- nursing model -- nursing personnel -- nursing process -- nursing research -- nursing skill -- nursing standards -- nursing technique -- Nutria -- nutrient bioavailability -- nutrient blood level -- nutrient drug interaction -- nutrient intake activity -- nutrient intake disorder -- nutrient interaction -- nutrient recommended daily allowance -- nutrient requirement -- nutrition -- nutrition aspect of cancer -- nutrition disorder -- nutrition disorder chemotherapy -- nutrition disorder diagnosis -- nutrition disorder pharmacotherapy -- nutrition disorder therapy -- nutrition education -- nutrition of aging -- nutrition related cancer -- nutrition related neoplasm -- nutrition related tag -- nutrition therapy -- nutritional epidemiology -- nutritional requirement -- nutritional status -- nutropin -- nyctalopia -- nylon -- nystagmography -- nystagmus -- nystatin -- General Name, Symbol, Number sodium, Na, 11 Series alkali metal Group, Period, Block 1 (IA), 3, s Density, Hardness 968 kg/m3, 0. ... The title given to this article is incorrect due to technical limitations. ... The title given to this article is incorrect due to technical limitations. ... Nicotinamide adenine dinucleotide (NAD+) Nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP) are two important coenzymes found in cells. ... Nicotinamide adenine dinucleotide (NAD+) Nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP) are two important coenzymes found in cells. ... Categories: Biochemistry stubs | Cellular respiration | EC 1. ... Nadolol (Corgard) is a non-selective beta-blocker used in the treatment of high blood pressure and chest pain. ... Nicotinamide adenine dinucleotide (NAD+) Nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP) are two important coenzymes found in cells. ... Nicotinamide adenine dinucleotide (NAD+) Nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP) are two important coenzymes found in cells. ... Naegleria fowleri is a free living, pathogenic amoeba typically found in warm fresh water, from 25-35 degrees Celsius. ... The word nail has several meanings: In anatomy, a nail is a hard covering to the tip of fingers or toes In engineering, a nail is a metal pin-shaped object used to hold things together This is a disambiguation page — a navigational aid which lists other pages that might... Naloxone is a drug used to counter the effects of overdosing on opioids such as heroin and morphine. ... Naltrexone is an opioid receptor antagonist used in the management of alcohol dependence and opioid dependence. ... Nandrolone, known commercially as Deca-Durabolin, is an anabolic steroid occurring naturally in the human body, albeit in small quantities. ... Nanomedicine is the medical application of nanotechnology and related research. ... Nanotechnology - Wikipedia /**/ @import /skins/monobook/IE50Fixes. ... Naphtha is a group of various volatile flammable liquid hydrocarbon mixtures used primarily as feedstocks in refineries for the reforming process and in the petrochemical industry for the production of olefins in steam crackers. ... Naphthalene (also known as naphthalin, naphthaline, tar camphor, white tar, albocarbon, or naphthene) is a crystalline white solid hydrocarbon with a typical mothball odor. ... This article describes the biomolecule known as Vitamin K. For the unrelated drug sometimes referred to in slang as Vitamin K, see Ketamine. ... Naproxen (trade names: Aleve, Anaprox, Naprosyn, Naprelan) is a non-steroidal anti-inflammatory drug commonly used for the reduction of mild to moderate pain, fever, inflammation and stiffness caused by conditions such as osteoarthritis, rheumatoid arthritis, psoriatic arthritis, gout, ankylosing spondylitis, injury, menstrual cramps, tendinitis, bursitis, and the treatment of... Naproxen (trade names: Aleve, Anaprox, Naprosyn, Naprelan) is a non-steroidal anti-inflammatory drug (NSAID) commonly used for the reduction of mild to moderate pain, fever, inflammation and stiffness caused by conditions such as osteoarthritis, rheumatoid arthritis, psoriatic arthritis, gout, ankylosing spondylitis, injury, menstrual cramps, tendinitis, bursitis, and the treatment... Narcolepsy is a neurological condition characterized by severe fatigue, irresistible episodes of sleep and general sleep disorder. ... The term narcotic, derived from the Greek word for stupor, originally referred to a variety of substances that induced sleep (such state is narcosis). ... (adj. ... The Nasal Bones (Ossa Faciei & Ossa Nasalia) are two small oblong bones, varying in size and form in different individuals; they are placed side by side at the middle and upper part of the face, and form, by their junction, the bridge of the nose. ... A nasal decongestant helps to remove congestion in the nasal passage. ... The pharynx is the part of the digestive system of many animals immediately behind the mouth and in front of the esophagus. ... Native Americans (also Indians, Aboriginal Peoples, American Indians, First Nations, Alaskan Natives, Amerindians, or Indigenous Peoples of America) are the indigenous inhabitants of The Americas prior to the European colonization, and their modern descendants. ... Natural killer cells (NK) are a type of lymphocyte (a white blood cell) and a component of nonspecific immune defense. ... Secondary metabolites, also known as natural products, are those products (chemical compounds) of metabolism that are not essential for normal growth, development or reproduction of an organism. ... Natural selection is the primary mechanism within the scientific theory of evolution, in that it alters the frequency of alleles within a population. ... This article needs cleanup, so as to conform to a higher standard. ... Naturopathic medicine is the practice of assisting in the health of patients through the application of natural remedies. ... Nausea (Greek Ναυτεία) is the sensation of unease and discomfort in the stomach with an urge to vomit. ... Species Allonautilus perforatus Allonautilus scrobiculatus Nautilus belauensis Nautilus macromphalus Nautilus pompilius pompilius Nautilus pompilius suluensis Nautilus stenomphalus The nautilus is a marine creature of the class Cephalopoda. ... Neural Cell Adhesion Molecule (NCAM) is a homophilic binding glycoprotein expressed on the surface of neurons, glia and skeletal muscle. ... Near infrared spectroscopy (NIR) is a spectroscopic method utilising the near infra-red region of the electromagnetic spectrum (from 1100nm to 2500nm). ... Normal vision for a achromatopsic colour-blind person. ... The neck is the part of the body on many limbed vertebrates that distinguishes the head from the torso or trunk. ... For the former Death Metal band called Autopsy, see Autopsy (band). ... Necrosis (in Greek Νεκρός = Dead) is the name given to unprogrammed death of cells/living tissue (compare with apoptosis - programmed cell death). ... Needle sharing is the colloquialism for the reuse of syringes by multiple illegal drug users to administer intravenous drugs, and is a primary vector for diseases which can be transmitted through blood, including hepatitis and AIDS. See also: Needle-exchange programme ... Neisseria gonorrhoeae is a species of Gram-negative (see also Gram Stain) bacteria responsible for the disease gonorrhoea. ... Genera Alysiella Aquaspirillum Catenococcus Chromobacterium Eikenella Formivibrio Iodobacter Kingella Microvirgula Neisseria Prolinoborus Simonsiella Vitreoscilla Vogesella The Neisseriaceae are a family of gram-negative, parasitic Proteobacteria, given their own order. ... Classes Adenophora    Subclass Enoplia    Subclass Chromadoria Secernentea    Subclass Rhabditia    Subclass Spiruria    Subclass Diplogasteria The roundworms (Phylum Nematoda) are one of the most common phyla of animals, with over 20,000 different described species. ... In the anatomy of animals, the neopallium or neocortex is a part of the telencephalon in the brain. ... Neomycin is an antibiotic that is found in many topical medications such as creams, ointments and eyedrops. ... General Name, Symbol, Number Neon, Ne, 10 Chemical series Noble gases Group, Period, Block 18 (VIIIA), 2, p Density, Hardness 0. ... A human infant The word Infant derives from the Latin in-fans, meaning unable to speak. ... In the anatomy of animals, the neopallium or neocortex is a part of the telencephalon in the brain. ... Neoplasia (literally: new growth) is sudden and abnormal growth in a tissue or organ. ... Neoprene is the trade name for a family of synthetic rubbers based on polychloroprene. ... Neostigmine is a parasympathomimetic, specifically, a reversible cholinesterase inhibitor. ... In insects, juvenile hormone (also neotenin) refers to a group of hormones which ensures growth of the larva, while preventing metamorphosis. ... Nephrectomy is the surgical removal of a kidney. ... Nephritis is inflammation of the kidney. ... Wilms tumor is a neoplasm of the kidneys that typically occurs in children. ... Kidney stones are solid accretions (crystals) of dissolved minerals in urine found inside the kidneys or ureters. ... Nephron of the kidney A nephron is the basic structural and functional unit of the kidney. ... Nephrosis is an old term for one of many non-inflammatory diseases of the kidneys. ... Nephrotoxicity is a poisonous effect of some substances, both toxins and medication, on the kidney. ... A nerve is an enclosed, cable-like bundle of nerve fibers or axons, which includes the glia that ensheath the axons in myelin. ... Nerve agents (also known as nerve gases, though these chemicals are liquid at room temperature) are a class of phosphorus-containing organic chemicals (organophosphates) that inhibit the acetylcholinesterase enzyme in animals. ... Neurons (also called nerve cells) are the primary cells of the nervous system. ... A nerve is an enclosed, cable-like bundle of nerve fibers or axons, which includes the glia that ensheath the axons in myelin. ... Nerve agents (also known as nerve gases, though these chemicals are liquid at room temperature) are a class of phosphorus-containing organic chemicals (organophosphates) that inhibit the acetylcholinesterase enzyme in animals. ... Neurotrophins are a family of molecules that encourage survival of nervous tissue. ... The nervous system of an animal coordinates the activity of the muscles, monitors the organs, constructs and processes input from the senses, and initiates actions. ... The nervous system of an animal coordinates the activity of the muscles, monitors the organs, constructs and processes input from the senses, and initiates actions. ... A neural network is an interconnected group of artificial or biological neurons. ... A neural pathway is a neural tract connecting one part of the nervous system with another, usually consisting of bundles of elongated, myelin insultated neurons, known collectively as white matter. ... The neural plate is thick and flat bundle of ectoderm which develops in the embryo into the nervous system. ... The neural tube is the embryonal structure that gives rise to the brain and spinal cord. ... The neural tube is the embryonal structure that gives rise to the brain and spinal cord. ... Neuraminidase ribbon diagram Neuramidase is an antigenic glycoprotein enzyme found on the surface of the Influenza virus. ... Neurasthenia was a term first coined by Beard in 1880 to describe a condition with symptoms of fatigue, anxiety and pessimism. ... Neurinoma is a tumor, usually benign but sometimes cancerous, which forms on the myelinous sheath of a nerve. ... Neuroanatomy is the anatomy of the nervous system. ... Neuroscience is a field of study which deals with the structure, function, development, genetics, biochemistry, physiology, pharmacology and pathology of the nervous system. ... A neuroblast is a dividing cell that will develop into neurons. ... Neuroblastoma is the most common extracranial solid cancer in infancy and childhood. ... Neurochemistry is a branch of neuroscience that is heavily devoted to the study of neurochemicals. ... The study of neural development draws on both neuroscience and developmental biology to describe the cellular and molecular mechanisms by which complex nervous systems emerge during embryonic development and throughout life. ... A neuroeffector junction is the site where a neuron releases a neurotransmitter to affect a target (non-neuron) cell. ... In medicine, the neurofibromatoses (singular, neurofibromatosis) are certain genetic disorders of the nervous system. ... Intermediate filaments are one component of the cytoskeleton - important structural components of living cells. ... Neurogenesis literally means birth of neurons. Neurogenesis is most prevalent during pre-natal development and is the process by which neurons are created to populate the growing brain. ... Neurogenic shock is shock caused by the sudden loss of the sympathetic nervous system signals to the smooth muscle in vessel walls. ... Neuroglia cells of the brain shown by Golgis method. ... Any hormone produced by neurosecretory cells, usually in the brain. ... The posterior pituitary (also called the neurohypophysis) comprises the posterior lobe of the pituitary gland and is part of the endocrine system. ... Neuroimaging is the term used for all invasive, minimally invasive and non-invasive methods and techniques used for obtaing structural and functional images of the nervous system, i. ... General Information Neurokinin 1 is a G protein coupled receptor found in the central and peripheral nervous system. ... The term antipsychotic is applied to a group of drugs used to treat psychosis. ... Neurology is a branch of medicine dealing with disorders of the central and peripheral nervous systems. ... Neurology is the branch of medicine that deals with the nervous system and disorders affecting it. ... A neuromodulator is a substance other than a neurotransmitter, released by a neuron at a synapse and conveying information to adjacent or distant neurons, either enhancing or damping their activities. ... A neuromuscular junction is the junction of the axon terminal of a motoneuron with the motor end plate, the highly-excitable region of muscle fiber plasma membrane responsible for initiation of action potentials across the muscles surface. ... Neurons (also spelled neurones or called nerve cells) are the primary cells of the nervous system. ... Neuropathology is the study of diseases of the nervous system. ... A Neuropeptide is any of the variety of peptides found in neural tissue; e. ... Neuropeptide Y (NPY) is a 36 amino acid peptide neurotransmitter found in the brain and autonomic nervous system. ... Neuropharmacology is the branch of Health Science concerned with the study of drugs on the nervous system. ... Neurophysiology is a part of physiology as a science, which is concerned with the study of the nervous system. ... Neuropil is the brain tissue that lies between the cell bodies. ... Neuropsychological tests are specifically designed tasks used to measure a psychological function known to be linked to a particular brain structure or pathway. ... Neuropsychology is a branch of psychology that aims to understand how the structure and function of the brain relates to specific psychological processes. ... Neuroscience is a field of study which deals with the structure, function, development, genetics, biochemistry, physiology, pharmacology and pathology of the nervous system. ... The term neurosis, also psychoneurosis or neurotic disorder, in modern psychology refers to any mental disorder that, although may cause distress, does not interfere with rational thought or the persons ability to function. ... Neurosurgery is the surgical discipline focused on treating the central and peripheral nervous system. ... The term neurotoxic is used to describe a substance, condition or state that damages the nervous system and / or brain, usually by killing neurons. ... A neurotoxin is a toxin that acts specifically on nerve cells, or neurons, usually by interacting with membrane proteins and ion channels. ... Neurotransmitters are chemicals that are used to relay, amplify and modulate electrical signals between a presynaptic and a postsynaptic neuron. ... Transmembrane receptors are integral membrane proteins, which reside and operate typically within a cells plasma membrane, but also in the membranes of some subcellular compartments and organelles. ... Neurotrophins are a family of molecules that encourage survival of nervous tissue. ... Neurotrophins are a family of molecules that encourage survival of nervous tissue. ... In chemistry, neutron activation analysis is a technique used to very accurately determine the concentrations of elements in a sample. ... In quantum physics, neutrons are particles that can occur as building blocks of atomic nuclei. ... Neutron radiation consists of free neutrons. ... Neutropenia is a haematological disorder characterised by an abnormally low number of neutrophil granulocytes (a type of white blood cell). ... Neutrophil granulocytes (commonly referred to as neutrophils) are a class of white blood cells and are part of the immune system. ... Nevirapine is a controversial AIDS drug. ... A nevus is a general term that refers to a number of different, usually benign, pigmented lesions of the skin. ... Families Cebidae Nyctipithecidae Pitheciidae Atelidae The New World monkeys or Platyrrhines are the four families of primates that are found in Central and South America, the Cebidae, Nyctipithecidae, Pitheciidae and Atelidae. ... Newcastle disease is a highly contagious bird disease affecting many domestic and wild avian species. ... smooth newt Newts are small, usually bright-coloured semiaquatic salamanders of North America, Europe and North Asia. ... Niacin, also known as nicotinic acid or vitamin B3, is a water-soluble vitamin whose derivatives such as NADH play essential roles in energy metabolism in the living cell. ... Niacin, also known as nicotinic acid or vitamin B3, is a water-soluble vitamin whose derivatives such as NADH play essential roles in energy metabolism in the living cell. ... General Name, Symbol, Number nickel, Ni, 28 Chemical series transition metals Group, Period, Block 10 , 4, d Density, Hardness 8908 kg/m³, 4. ... Niacin, also known as nicotinic acid or vitamin B3, is a water-soluble vitamin whose derivatives such as NADH play essential roles in energy metabolism in the living cell. ... Nicotinamide adenine dinucleotide (NAD+) Nicotinamide adenine dinucleotide (NAD) and nicotinamide adenine dinucleotide phosphate (NADP) are two important coenzymes found in cells. ... Nicotine is an organic compound, an alkaloid found naturally throughout the tobacco plant, with a high concentration in the leaves. ... Nicotine gum is a type of chewing gum that delivers nicotine to the body. ... A nicotine patch is a transdermal patch that releases nicotine into the skin. ... Nicotinic Receptors form ion channels present in the plasma membrane of cells. ... Many species of land animals have a nictitating membrane, sometimes (but incorrectly) spelled nicitating membrane, which can move across the eyeball to give the sensitive eye structures additional protection in particular circumstances. ... Niemann-Pick disease is an inherited condition involving lipid metabolism (the breakdown and use of fats and cholesterol in the body) in which harmful amounts of lipids accumulate in the spleen, liver, lungs, bone marrow, and brain. ... Nifedipine is a dihydropyridine calcium channel blocker. ... Nyctalopia (literally night blindness) is a condition making it difficult or impossible to see in the dark. ... A nightmare is a dream of particular intensity and with content that the sleeper finds disturbing. ... Nimodipine (marketed by Bayer as Nimotop®) is a dihydropyridine calcium channel blocker originally developed for the treatment of high blood pressure. ... Species Hendravirus Nipahvirus Henipavirus is a genus of the family Paramyxoviridae, order Mononegavirales containing two members, Hendra virus (originally Equine morbillivirus, EBV) and Nipah virus. ... Nitrates are the salts of nitric acid. ... Nitration occurs with aromatic organic compounds via an electrophilic substitution mechanism involving the attack of the electron-rich benzene ring by the nitryl (nitronium) cation. ... In chemistry, a nitrene (R-N:) is the nitrogen analogue of a (carbon carbene). ... The chemical compound nitric oxide is a gas with chemical formula NO. It is an important signaling molecule in the body of mammals including humans, one of the few gaseous signaling molecules known. ... The nitric oxide synthases (NOS) are a group of enzymes (EC 1. ... Nitrification is the biological oxidation of ammonia with oxygen into nitrite followed with the oxidation of these nitrites into nitrates. ... A nitrile is an organic compound which has a -CN functional group. ... In inorganic chemistry nitrites are salts of nitrous acid HNO2. ... Nitro compounds are organic compounds that contain one or more nitro functional groups (NO2). ... Chemical structure of nitrobenzene Nitrobenzene, also known as nitrobenzol or oil of mirbane, is a poisonous organic compound with an almond odor and chemical formula C6H5NO2. ... Nitrofurantoin (trade names Furadantin, Macrobid, Microdantina, and Macrodantinis) is an antibiotic drug. ... Nitrofurazone is a compound element is made of nitrogen, benzotae, and astinine. ... General Name, Symbol, Number Nitrogen, N, 7 Chemical series nonmetals Group, Period, Block 15 (VA), 2, p Density 1. ... Nitrogen fixation is the process by which nitrogen is taken from its relatively inert molecular form (N2) in the atmosphere and converted into nitrogen compounds useful for other chemical processes (such as, notably, ammonia, nitrate and nitrogen dioxide). ... Nitrogen narcosis or inert gas narcosis is a reversible alteration in consciousness producing a state similar to alcohol intoxication in SCUBA divers at depths beyond 30m. ... Nitrogen has six different oxides: Nitric oxide (NO), nitrogen(II) oxide Nitrogen dioxide (NO2) Dinitrogen oxide (N2O) (Nitrous oxide) Dinitrogen trioxide (N2O3) Dinitrogen tetroxide (N2O4) Dinitrogen pentoxide (N2O5) The term nitrogen oxide is imprecise and can be used to refer to any of these or to a mixture of them. ... Nitrogenase is the enzyme used by organisms to fix atmospheric nitrogen gas (N2). ... Nitroglycerin, also known as nitroglycerine, trinitroglycerin, and glyceryl trinitrate, is a chemical compound, a heavy, colorless, poisonous, oily, explosive liquid obtained by nitrating glycerol. ... Nitrosamines are carcinogenous chemical compounds of the chemical structure R2N-N=O. Nitrosamines are produced from nitrites and amines. ... Nitrous acid weak monobasic acid known only in solution and in the form of nitrite salts. ... Nitrous oxide, also known as dinitrogen oxide or dinitrogen monoxide, is a chemical compound with chemical formula N2O. Under room conditions it is a colourless non-flammable gas, with a pleasant slightly sweet odor. ... Ketoconazole is a synthetic antifungal drug used to prevent and treat skin and fungal infections, especially in immunocompromised patients such as those with AIDS. Due to its side-effect profile, it has been superseded by newer antifungals, such as Fluconazole and Itraconazole. ... Natural killer cells (NK) are a type of lymphocyte (a white blood cell) and a component of nonspecific immune defense. ... NMDA (N-methyl-D-aspartic acid) is an amino acid derivative acting as specific agonist at the NMDA receptor, and therefore mimics the action of the neurotransmitter glutamate on that receptor. ... The NMDA receptor (NMDAR) is an ionotropic receptor for glutamate (NMDA is a name of its selective specific agonist). ... NMR may refer to: Nuclear magnetic resonance, a phenomenon involving the interaction of atomic nuclei and external magnetic fields Nielsen Media Research, a U.S. company which measures TV, radio and newspaper audiences This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the... The nitric oxide synthases (NOS) are a group of enzymes (EC 1. ... Pain is both a sensory and emotional experience, generally associated tissue damage, or inflammation. ... A nociceptor is a sensory receptor that responds only after a high level of stimuli or a level enough to hurt the individual. ... Author: Latreille, 1809 Type species: Noctua pronuba (Large Yellow Underwing) Diversity: 4,200 genera 35,000 species Subfamilies Acontiinae - Acronictinae - Aganainae - Agaristinae - Amphipyrinae - Amphipyrinae - Bagisarinae - Bryophilinae - Calpinae - Catocalinae - Cocytiinae - Condicinae - Cuculliinae - Dilobinae - Eucocytiinae - Eustrotiinae - Euteliinae - Glottulinae - Hadeninae - Heliothinae - Herminiinae - Hypeninae - Noctuinae - Plusiinae - Psaphidinae - Raphiinae - Stictopterinae - Stiriinae - Strepsimaninae - Ufeinae The Noctuidae... Genera Alphanodavirus Betanodavirus The Nodaviridae are a family of viruses, including the following genera: Genus Alphanodavirus; type species: Nodamura virus Genus Betanodavirus; type species: Striped jack nervous necrosis virus Categories: Viruses | Virus stubs ... Nodes of Ranvier are regularly spaced gaps in the myelin sheath around a nerve cell fiber or axon. About one micrometer in length, these gaps expose the membrane of the axon to the surrounding liquid. ... In general usage, noise can be considered data without meaning; that is, data that is not being used to transmit a signal, but is simply produced as an unwanted by-product of other activities. ... Car stereo advertisement. ... Tamoxifen is an oral selective estrogen receptor modulator which is used in breast cancer, and is currently the worlds largest selling breast cancer treatment. ... Nomenclature is a system of naming and categorizing objects in a given category. ... In biology, nondisjunction is the failure of a chromosome to split correctly during meiosis. ... Non-steroidal anti-inflammatory drugs, usually abbreviated to NSAIDs, are drugs with analgesic, antipyretic and anti-inflammatory effects - they reduce pain, fever and inflammation. ... http://members. ... Norepinephrine, known as noradrenaline outside the USA, is a catecholamine and a phenethylamine with chemical formula C8H11NO3. ... Norepinephrine, known as noradrenaline outside the USA, is a catecholamine and a phenethylamine with chemical formula C8H11NO3. ... Norplant is a form of birth control released in 1991 by Wyeth Pharmaceuticals, consisting of a set of six small, silicone capsules filled with levonorgestrel, a synthetic progestin used in many birth control pills. ... World map showing location of North America A satellite composite image of North America North America is the third largest continent in area and in population after Eurasia and Africa. ... Nortriptyline is a tricyclic antidepressant marketed under the tradenames Aventyl® and Pamelor®. It is used to treat depression. ... See amlodipine. ... Norvir is a drug used to treat AIDS. It is manufactured by Abbott Laboratories. ... Norwalk virus is a virus, the prototype of the Norwalk virus family or the noroviruses. ... NOS can be: the acronym for Network Operating System a brand name, commonly used instead of nitrous, being derived from the name of a supplier of the product, Nitrous Oxide Systems, Inc. ... Human nose Anatomically, a nose is a protuberance in vertebrates that houses the nostrils, or nares, which admit and expel air for respiration. ... A nosocomial infection is an infection that is caused by staying in a hospital. ... Nosology (in Greek Nosos = Disease) is a branch of medicine that deals with classification of diseases. ... Wikipedia does not yet have an article with this exact name. ... NTF (National Transfer Format) Designed in 1988 specifically for the transfer of spatial information; it is administered by the British Standards Institution. ... Nuclear chemistry is a subfield of chemistry dealing with radioactivity, nuclear processes and nuclear properties. ... The nuclear envelope refers to the double membrane of the nucleus that encloses genetic material in eukaryotic cells. ... Nuclear medicine is the branch of medicine that uses unsealed radioactive substances in diagnosis and therapy. ... The nuclear envelope refers to the double membrane of the nucleus that encloses genetic material in eukaryotic cells. ... Nuclear power is power generated from a nuclear reaction. ... Nuclear Transfer is the two-part process of removing the nucleus, and hence genetic material, from a cell and replacing it with the nucleus of another, older, donor cell. ... A nuclease is an enzyme capable of cleaving the phosphodiester bonds between the nucleotide subunits of nucleic acids. ... A nucleic acid is a complex, high-molecular-weight biochemical macromolecule composed of nucleotide chains that convey genetic information. ... Nucleobases are the parts of RNA and DNA that are involved in pairing up (see also base pairs). ... In biology, the nucleolus is, strictly speaking, a suborganelle of the cell nucleus, which is an organelle. ... Nucleophilic addition involves the addition of a nucleophile to a chemical compound. ... In chemistry, nucleophilic substitution is a type of chemical reaction in which one nucleophile electron donor replaces another as a covalent substitute of some atom. ... Nucleosides are glycosylamines made by attaching a nucleobase to a ribose ring. ... Nucleoside triphosphate is a high energy molecule used in various biochemical reactions by a variety of biological organisms. ... A nucleosome is a unit made of DNA and histones. ... A nucleotide is an organic molecule consisting of a heterocyclic nucleobase (a purine or a pyrimidine), a pentose sugar (deoxyribose in DNA or ribose in RNA), and a phosphate or polyphosphate group. ... A DNA sequence (sometimes genetic sequence) is a succession of letters representing the primary structure of a real or hypothetical DNA molecule or strand, The possible letters are A, C, G, and T, representing the four nucleotide subunits of a DNA strand (adenine, cytosine, guanine, thymine), and typically these are... The nucleus accumbens is a collection of neurons in the basal forebrain region of reptiles and higher organisms which play an important role in reward, pleasure and addiction. ... A nude mouse is a genetic mutant that has no thymus gland, and has a severely reduced immune system. ... Infraorders See text Nudibranchs (Nudibranchia), form the largest suborder of the order Opisthobranchia, subclass Orthogastropoda, class Gastropoda in the phylum Mollusca. ... A nurse comforting a patient A nurse is a health care professional, who is engaged in the practice of nursing. ... A nurse practitioner is an Advanced Practice Nurse (APN) who manages the care of patients in various settings depending on her/his education. ... Nursery can mean: A nursery is a place for the temporary care of children in the absence of their parents. ... A nursery school or preschool is a school for the education of very young children (generally five years of age and younger). ... Note: This article is on the healthcare profession of nursing. ... Patient care is part of a nurses role in implementing a care plan. ... A nursing diagnosis is a standardized statement about to the health of a client (individual, family, or community) for the purpose of providing nursing care. ... A nursing home is a place of residence for people who require constant medical care. ... Nursing models are conceptual models, constructed of theories and concepts. ... The nursing process is a process by which nurses deliver care to patients. ... Nursing research is the term used to describe the evidence used to support Nursing practice. ... Binomial name Myocastor coypus (Molina, 1782) The Coypu (Myocastor coypus) or Nutria is a large, crepuscular, semiaquatic rodent native to South America, but now also present in Europe, Asia, and North America. ... Nutrition is interpreted as the study of the organic process by which an organism assimilates and uses food and liquids for normal functioning, growth and maintenance and to maintain the balance between health and disease. ... Nyctalopia (literally night blindness) is a condition making it difficult or impossible to see in the dark. ... This article covers the material nylon. ... Nystagmus is rapid involuntary rhythmic eye movement, with the eyes moving quickly in one direction (quick phase), and then slowly in the other (slow phase). ... Nystatin (Nystan®, Infestat®, Nystamont®) is an polyene antimycotic drug Nystatin is considered one of the clean drugs as it has no proven side effects. ...