NationMaster - Encyclopedia: Tegument

In zootomy, the integumentary system is often the largest organ system of an animal, comprising skin, hair, feathers, scales, nails, skin glands and their products (sweat, slime). It distinguishes, separates, protects, and informs the animal with regard to its surroundings. Small bodied invertebrates of aquatic or continually moist habitats respire at their outer layer (integument). This gas exchange system, where gasses simply diffuse into and out of the interstitial fluid, is called integumentary exchange. Zootomy is the zoological discipline that focuses on animal anatomy, in particular on the dissection of animals. ... In biology, an organ (Latin: organum, instrument, tool) is a group of tissues, which perform a specific function or group of functions. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Placozoa (trichoplax) Subregnum Bilateria (bilateral symmetry) Acoelomorpha (basal) Orthonectida (parasitic to flatworms, echinoderms, etc. ... Diagram of the layers of human skin In zootomy and dermatology, skin is an organ of the integumentary system composed of a layer of tissues that protect underlying muscles and organs. ... Young Girl Fixing her Hair, by Sophie Gengembre Anderson Hair (latin pili) is a filamentous outgrowth of the skin found only in mammals. ... Closeup on a single white feather A feather is one of the epidermal growths that forms the distinctive outer covering, or plumage, on a bird. ... In most biological nomenclature, a scale (Greek lepid, Latin squama) is a small rigid plate that grows out of an animals skin to provide protection. ... Nails: left hand, 24 year-old human male Anatomy In anatomy, a nail is a horn-like piece at the end of an animal finger or toe. ... SWEAT is an OLN/TSN show hosted by Julie Zwillich that aired in 2003-2004. ... Tom Cruise and Rosie ODonnell slimed at the Nickelodeon Kids Choice Awards in 2001. ... It has been suggested that Gas exchange be merged into this article or section. ... Interstitial fluid is one of the two components of extracellular fluid, the other being plasma. ...

In botany, the integument refers to the envelope of an ovule. Botany is the scientific study of plantlife. ...

The name comes from the Latin integumentum, which means "to cover". Latin is an ancient Indo-European language originally spoken in the region around Rome called Latium. ...

Components

The major components of the integumentary system are the cutaneous membrane (skin), and its accessory structures (hair, nails, exocrine glands). This article is about skin in the biological sense. ... Diagram of the layers of human skin In zootomy and dermatology, skin is an organ of the integumentary system composed of a layer of tissues that protect underlying muscles and organs. ... Exocrine gland refers to glands that secrete their products via a duct. ...

Sweating (also called perspiration or sometimes transpiration) is the loss of a watery fluid, consisting mainly of sodium chloride and urea in solution, that is secreted by the sweat glands in the skin of mammals. ... The sebaceous glands are glands found in the skin of mammals. ... Anatomy of the human ear. ... Cerumen, commonly known as earwax, is a yellowish, waxy substance secreted in the ear canal of humans and many other mammals. ... In both males and females, the breasts are composed of adipose tissue and mammary glands. ...

See also

Dermatology is the branch of medicine dealing with the integumentary system. As skin is the most visible organ, skin appearance or symptoms provides important clues not only to skin diseases but also to disorders of other organs, such as the liver. Skin is also the most vulnerable organ system because of exposure to radiation, trauma, infection, and harmful chemicals. Dermatology (from Greek derma, skin) is a branch of medicine dealing with the skin and its appendages (hair, nails, sweat glands etc). ... Medicine is the branch of health science and the sector of public life concerned with maintaining human health or restoring it through the treatment of disease and injury. ... The term symptom (from the Greek syn = con/plus and pipto = fall, together meaning co-exist) has two similar meanings in the context of physical and mental health: A symptom may loosely be said to be a physical condition which shows that one has a particular illness or disorder (see... The liver is one of the largest internal organs of the human body. ...

Sources

Category: Integumentary system Diagram of the layers of human skin In zootomy and dermatology, skin is an organ of the integumentary system composed of a layer of tissues that protect underlying muscles and organs. ... Sweating (also called perspiration or sometimes transpiration) is the loss of a watery fluid, consisting mainly of sodium chloride and urea in solution, that is secreted by the sweat glands in the skin of mammals. ... The sebaceous glands are glands found in the skin of mammals. ... Young Girl Fixing her Hair, by Sophie Gengembre Anderson Hair (latin pili) is a filamentous outgrowth of the skin found only in mammals. ... Nails: left hand, 24 year-old human male Anatomy In anatomy, a nail is a horn-like piece at the end of an animal finger or toe. ... Diagram of the layers of human skin In zootomy and dermatology, skin is an organ of the integumentary system composed of a layer of tissues that protect underlying muscles and organs. ... Epidermis is the outermost layer of the skin. ... The stratum corneum (the horny layer) is the outermost layer of the epidermis, and comprises the surface of the skin. ... The Stratum Lucidum is one of the layers of the Epidermis. ... Stratum granulosum contains 3 to 5 rows of flattened cells whose cytoplasm contains small granules. ... It is a multiple-layered arrangement of cuboidal cells containing molecular bridges that conect them to adjacent cells. ... Stratum germinativum or stratum basale is the layer of keratinocytes that lies at the base of the epidermis immediately above the dermis. ... The dermis is the layer of skin beneath the epidermis, that consists of connective tissue and cushions the body from stress and strain. ... The subcutis is the layer of tissue directly underlying the cutis. ... Human anatomy or anthropotomy is a special field within anatomy. ... A circulatory system (sometimes cardiovascular system) is an organ system that moves substances to and from cells; it can also help stabilize body temperature and pH (part of homeostasis). ... The gastrointestinal tract or digestive tract, also referred to as the GI tract or the alimentary canal or the gut, is the system of organs within multicellular animals which takes in food, digests it to extract energy and nutrients, and expels the remaining waste. ... Major endocrine glands. ... The immune system is the system of specialized cells and organs that protect an organism from outside biological influences. ... Lymph originates as blood plasma lost from the circulatory system, which leaks out into the surrounding tissues. ... The muscular system is the biological system of animals (including humans) that allows them to move internally and externally. ... The nervous system of an animal coordinates the activity of the muscles, monitors the organs, constructs and also stops input from the senses, and initiates actions. ... Diagram of a human skeleton The human skeleton is made of individual or joined bones, supported and supplemented by a structure of ligaments, tendons, muscles, cartilage and other organs. ... A sex organ, or primary sexual characteristic, narrowly defined, is any of those parts of the body (which are not always bodily organs according to the strict definition) which are involved in sexual reproduction and constitute the reproductive system in a complex organism; namely: Male: penis (notably the glans penis... To meet Wikipedias quality standards, this article or section may require cleanup. ... The urinary system is the organ system that produces, stores, and carries urine. ...

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