Lateral horn/Anterior horn (Intermediolateral nucleus) Parvalbumin is a calcium binding albumin protein. ... Basket cells are inhibitory GABAergic interneurons found in the molecular layer of the cerebellum. ... In neuroscience, stellate cells are inhibitory interneurons found within the molecular layer of the cerebellum. ... In neuroscience, Golgi cells are inhibitory interneurons found within the granular layer of the cerebellum. ... In neuroscience, granule cells are tiny cells found within the granular layer of the cerebellum. ... eMedicine is an online clinical medical knowledge base that was founded in 1996. ... The human torso Torso is an anatomical term for the greater part of the human body without the head and limbs. ... The Spinal cord nested in the vertebral column. ... The term spinal nerve generally refers to the mixed spinal nerve, which is formed from the dorsal and ventral roots that come out of the spinal cord. ... penis ... This is a dorsal root ganglion (DRG) from a chicken embryo (around stage of day 7) after incubation overnight in NGF growth medium stained with anti-neurofilament antibody. ... The posterior (or dorsal) branches (or divisions) of the spinal nerves are as a rule smaller than the anterior divisions. ... In anatomy and neurology, the ventral root is the efferent motor root of a spinal nerve. ... The ventral ramus (anterior ramus, anterior branch, anterior divisions of the spinal nerves) supply the antero-lateral parts of the trunk, and the limbs; they are for the most part larger than the posterior divisions. ... The sympathetic trunk (sympathetic chain, gangliated cord) is a bundle of nerve fibers that runs from the base of the skull to the coccyx. ... Rami communicans (plural rami communicantes) is the term used for a nerve which connects two other nervers. ... Each spinal nerve receives a branch, gray ramus communicans, from the adjacent ganglion of the sympathetic trunk. ... The thoracic, and the first and second lumbar nerves each contribute a branch, white ramus communicans to the adjoining sympathetic ganglion. ... Grey matter (or gray matter) is a major component of the central nervous system, consisting of nerve cell bodies, glial cells (astroglia and oligodendrocytes), capillaries, and short nerve cell extensions/processes (axons and dendrites). ... Medulla spinalis - Substantia grisea The Rexed laminae comprise a system of ten layers of grey matter (I-X), identified in the early 1950s by Bror Rexed to label portions of the spinal cord. ... The posterior horn (posterior cornu, dorsal horn, spinal dorsal horn) of the spinal cord is the dorsal (more towards the back) grey matter of the spinal cord. ... The posteromarginal nucleus, Rexed lamina I, is located at the most dorsal aspect of the dorsal horn of the spinal cord. ... The dorsal nucleus (column of Clarke, Clarkes columns, posterior thoracic nucleus) occupies the medial part of the base of the posterior column, and appears on the transverse section as a well-defined oval area. ... The apex of the posterior column is capped by a V-shaped or crescentic mass of translucent, gelatinous neuroglia, termed the substantia gelatinosa of Rolando (or gelatinous substance of posterior horn of spinal cord), which contains both neuroglia cells, and small nerve cells. ... The Nucleus proprius is a layer of the spinal cord adjacent to the substantia gelatinosa. ... In the thoracic region, the postero-lateral part of the anterior column projects lateralward as a triangular field, which is named the lateral column (lateral cornu, lateral horn). ... The anterior horn of the spinal cord (or anterior cornu, or anterior column) is the ventral (front) grey matter section of the spinal cord. ... The intermediolateral nucleus is a region of gray matter found in Rexed lamina VII. It contains several well defined nuclei including the nucleus dorsalis (Clarks column), the intermediolateral cell column (lateral gray horn), and the sacral autonomic nucleus. ...

dendrite (Nissl body, dendritic spine, apical dendrite, basal dendrite) Cross-section through cervical spinal cord. ... Throughout the cervical and thoracic regions the central canal is situated in the anterior third of the medulla spinalis; in the lumbar enlargement it is near the middle, and in the conus medullaris it approaches the posterior surface. ... White matter is one of the two main solid components of the central nervous system. ... The portion of the medulla spinalis which lies between the posterolateral sulcus and the posterior median sulcus is named the posterior funiculus. ... The posterior column-medial lemniscus pathway is the sensory pathway responsible for transmitting fine touch and conscious proprioceptive information from the body to the cerebral cortex. ... The introduction to this article provides insufficient context for those unfamiliar with the subject matter. ... The fasciculus cuneatus (tract of Burdach) is triangular on transverse section, and lies between the fasciculus gracilis and the posterior column, its base corresponding with the surface of the medulla spinalis. ... The most lateral of the bundles of the anteior nerve roots is generally taken as a dividing line which separates the antero-lateral region into two parts, viz. ... The spinocerebellar tract is a set of axonal fibers originating in the spinal cord and terminating in the cerebellum. ... The dorsal spinocerebellar tract (posterior spinocerebellar tract, Flechsigs fasciculus, Flechsigs tract) conveys proprioceptive information from the body to the cerebellum. ... The ventral spinocerebellar tract conveys proprioceptive information from the body to the cerebellum. ... The spinothalamic tract is a sensory pathway originating in the spinal cord that transmits information about pain, temperature, itch and crude touch to the thalamus. ... The spinothalamic tract is the sensory pathway in the body that transmits pain, temperature, itch and crude touch. ... The spinothalamic tract is the sensory pathway in the body that transmits pain, temperature, itch and crude touch. ... The posterolateral tract (fasciculus of Lissauer, tract of Lissauer, dorsolateral fasciculus) is a small strand situated in relation to the tip of the posterior column close to the entrance of the posterior nerve roots. ... The spinotectal tract (spinotectal fasciculus) is supposed to arise in the dorsal column and terminate in the inferior and superior colliculi. ... The corticospinal or pyramidal tract is a massive collection of axons that travel between the cerebral cortex of the brain and the spinal cord. ... The corticospinal or pyramidal tract is a massive collection of axons that travel between the cerebral cortex of the brain and the spinal cord. ... In human anatomy, the extrapyramidal system is a neural network located in the brain that is part of the motor system involved in the coordination of movement. ... The rubrospinal tract is part of the indirect extra-pyramidal tract and is responsible for large muscle movement such as the arms and the legs. ... The olivospinal fasciculus (Helweg) arises in the vicinity of the inferior olivary nucleus in the medulla oblongata, and is seen only in the cervical region of the medulla spinalis, where it forms a small triangular area at the periphery, close to the most lateral of the anterior nerve roots. ... The most lateral of the bundles of the anterior nerve roots is generally taken as a dividing line which separates the antero-lateral region into two parts, viz. ... The anterior corticospinal tract (also called the direct pyramidal tract or anterior cerebrospinal fasciculus) is a small bundle of descending fibers that connect the cerebral cortex to the spinal cord. ... The vestibulospinal tract is one of the descending spinal tracts of the ventromedial pathway. ... The reticulospinal tract (or anterior reticulospinal tract) is an extrapyramidal motor tract which travels from the reticular formation. ... The tectospinal tract is part of the indirect extrapyramidal tract and is responsible for coordinating head and eye movements, It is responsible for impulses that are motor. ... The epidural space is a part of the human spine which is very close to the spinal cord, lying just outside the dura mater. ... The dura mater (from the Latin hard mother), or pachymeninx, is the tough and inflexible outermost of the three layers of the meninges surrounding the brain. ... The subdural space (or subdural cavity) is an artificial space created by the separation of the arachnoid mater from the dura mater as the result of trauma or pathologic process. ... The Arachnoid mater is one of the three layers of the meninges, interposed between the dura mater and the pia mater and separated from the pia mater by the subarachnoid space. ... The meninges (singular meninx) are the system of membranes that contain the brain. ... [www. ... The pia mater has 21 pairs of denticulate ligaments which attach it to the arachnoid and dura maters. ... The conus medullaris is the terminal end of the spinal cord. ... The cauda equina is a structure within the lower end of the spinal column, that consists of nerve roots and rootlets from above. ... The spinal cord is a part of the vertebrate nervous system that is enclosed in and protected by the vertebral column (it passes through the spinal canal). ... The cervical enlargement corresponds with the attachments of the large nerves which supply the upper limbs. ... The lumbar enlargement (or lumbosacral enlargement) gives attachment to the nerves which supply the lower limbs. ... The anterior median fissure of the spinal cord has an average depth of about 3 mm, but this is increased in the lower part of the medulla spinalis. ... The Anterior Commissure (precommissure) is a bundle of white fibers, connecting the two cerebral hemispheres across the middle line, and placed in front of the columns of the fornix. ... A thin section of lung tissue stained with hematoxylin and eosin. ... Nervous tissue is the fourth major class of vertebrate tissue. ... This article is about cells in the nervous system. ... Grey matter (or gray matter) is a major component of the central nervous system, consisting of nerve cell bodies, glial cells (astroglia and oligodendrocytes), capillaries, and short nerve cell extensions/processes (axons and dendrites). ... The soma, or perikaryon, is the bulbous end of a neuron, containing the cell nucleus. ... An axon or nerve fiber, is a long, slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neurons cell body or soma. ... The arrow labeled axon is pointing directly at the axon hillock. ... Axoplasm is the cytoplasm of the axon of a neuron. ... The axolemma is the membrane of a neurons axon. ... Intermediate filaments are one component of the cytoskeleton - important structural components of living cells. ... Dendrites (from Greek dendron, “tree”) are the branched projections of a neuron that act to conduct the electrical stimulation received from other neural cells to the cell body, or soma, of the neuron from which the dendrites project. ... Image of a Nissl-stained histological section through the rodent hippocampus showing various classes of neurons. ... Close up of the dendrite of a striatal medium spiny neuron. ... An apical dendrite is a dendrite that emerges from the apex of a pyramidal cell. ... A basal dendrite is a dendrite that emerges from the base of a pyramidal cell. ...

Free nerve ending As a part of the retina, the bipolar cell exists between photoreceptors (rod cells and cone cells) and ganglion cells. ... Pseudounipolar cells (Pseudo- false, uni- one) are sensory neurons in the peripheral nervous system. ... The multipolar neuron possesses a single (usually long) axon and many dendrites, allowing for the integration of a great deal of information from other neurons. ... A pyramidal cell (or pyramidal neuron, or projection neuron) is a multipolar neuron located in the hippocampus and cerebral cortex. ... Drawing of pigeon Purkinje cells (A) by Santiago Ramon y Cajal Purkinje cells are a class of GABAergic neuron located in the cerebellar cortex. ... In neuroscience, granule cells are tiny cells found within the granular layer of the cerebellum. ... The mechanism of the reflex arc In the nervous system, afferent neurons--otherwise known as sensory or receptor neurons--carry nerve impulses from receptors or sense organs toward the central nervous system. ... The mechanism of the reflex arc Sensory neurons (or neurones) are nerve cells within the nervous system responsible for converting external stimuli from the organisms environment into internal electrical impulses. ... The mechanism of the reflex arc Sensory neurons (neurones) are nerve cells within the nervous system responsible for converting external stimuli from the organisms environment into internal electrical motor reflex loops and several forms of involuntary behavior, including pain avoidance. ... The general somatic afferent fibers (or somatic sensory fibers), afferent fibers, arise from cells in the spinal ganglia and are found in all the spinal nerves, except occasionally the first cervical, and conduct impulses of pain, touch and temperature from the surface of the body through the posterior roots to... The general visceral afferent fibers (GVA, or sympathetic afferent fibers), conduct sensory impulses from the viscera through the rami communicantes and posterior roots to the spinal cord. ... Special somatic afferent (SSA) refers to efferent nerves which supply muscles derived from ectoderm. ... Special visceral afferent (SVA) refers to afferent nerves supporting the gastrointestinal tract. ... An axon or nerve fiber, is a long, slender projection of a nerve cell, or neuron, that conducts electrical impulses away from the neurons cell body or soma. ... Type Ia Sensory Fiber also called Primary Afferent Type 1A Fiber or Group II sensory fibers is a component of a muscle fibers muscle spindle which keeps track of the how fast a muscle stretch changes (the velocity of the stretch). ... Organ of Golgi (neurotendinous spindle) from the human tendo calcaneus. ... Type II sensory fiber are the second of the two main groups of stretch receptors. ... A delta fibers (Aδ) are the fibers which convey fast pain information. ... C-fibers are unmyeliniated and as a result, have a slower conduction velocity, lower than 2 m/s. ... In the nervous system, efferent nerves otherwise known as motor or effector neuron carry nerve impulses away from the central nervous systemto effectors - either muscles or glands. ... Motor nerves allow the brain to stimulate muscle contraction. ... In vertebrates, the term motor neuron (or motoneuron) classically applies to neurons located in the central nervous system (CNS) which project their axons outside the CNS and directly or indirectly control muscles. ... The general somatic efferent fibers (or somatic motor fibers), efferent fibers, arise from cells in the anterior column of the spinal cord and pass out through the anterior roots to the voluntary muscles. ... The general visceral efferent fibers (GVE or sympathetic efferent fibers), probably arise from cells in the lateral column or the base of the anterior column and emerge through the anterior roots and white rami communicantes. ... Special visceral efferent (SVE) refers to efferent nerves which supply muscles which derived from the branchial arches. ... Upper motor neurons are any neurons that carry motor information down to the final common pathway, that is, any neurons that are not directly responsible for stimulating the target muscle. ... Lower motor neurons (LMNs) are the motoneurons connecting the brainstem and spinal cord to muscle fibers, bringing the nerve impulses from the upper motor neurons out to the muscles. ... Alpha motor neurons (α-MNs) are large lower motor neurons of the brainstem and spinal cord. ... A muscle spindle, with γ motor and Ia sensory fibers Gamma motoneurons (γ-motoneurons), also called gamma motor neurons, are a component of the fusimotor system, the system by which the central nervous system controls muscle spindle sensitivity. ... Illustration of the major elements in a prototypical synapse. ... Neuropil is the feltwork of unmyelinated neuronal processes (axonal and dendritic) within the gray matter of the central nervous system Traditionally, when pathologists looked at brain tissue they concentrated on neurons (the active functioning cells of the brain), glial cells and axons (especially in white matter, which is mostly composed... In a neuron, synaptic vesicles, also called neurotransmitter vesicles, store the various neurotransmitters that are released during calcium-regulated exocytosis at the presynaptic terminal into the synaptic cleft of a synapse. ... 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. ... An electrical synapse is a mechanical and electrically conductive link between two abutting neurons that is formed at a narrow gap between the pre- and postsynaptic cells known as a gap junction. ... Renshaw cells are located in the spinal cord horn. ... In a sensory system, a sensory receptor is a structure that recognizes a stimulus in the internal or external environment of an organism. ... Meissners corpuscles (discovered by the anatomist Georg Meissner (1829-1903) are a type of mechanoreceptor and more specifically, a tactile corpuscle(corpusculum tactus). ... Merkel nerve endings are mechanoreceptors found in the skin and mucosa of vertebrates that provide touch information to the brain. ... A Pacinian corpuscle is a structure that functions as a mechanoreceptor. ... Ruffini Endings are one of the four main cutaneous mechanoreceptors. ... A muscle spindle is a specialized muscle structure innervated by both sensory and motor neuron axons. ... NERVE ENDINGS SUCK PENIS!!! ...