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Epithelium

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973:. Tight junctions are a pair of trans-membrane protein fused on outer plasma membrane. Adherens junctions are a plaque (protein layer on the inside plasma membrane) which attaches both cells' microfilaments. Desmosomes attach to the microfilaments of cytoskeleton made up of keratin protein. Hemidesmosomes resemble desmosomes on a section. They are made up of the integrin (a transmembrane protein) instead of cadherin. They attach the epithelial cell to the basement membrane. Gap junctions connect the cytoplasm of two cells and are made up of proteins called 1069: 630: 1394: 1382: 1370: 451:, Latin for "scale" – as on fish or snake skin. The cells fit closely together in tissues, providing a smooth, low-friction surface over which fluids can move easily. The shape of the nucleus usually corresponds to the cell form and helps to identify the type of epithelium. Squamous cells tend to have horizontally flattened, nearly oval-shaped nuclei because of the thin, flattened form of the cell. Squamous epithelium is found lining surfaces such as 767: 3719: 1358: 1077: 38: 649:, and both types of layering can be made up of any of the cell shapes. However, when taller simple columnar epithelial cells are viewed in cross section showing several nuclei appearing at different heights, they can be confused with stratified epithelia. This kind of epithelium is therefore described as 1060:. Here, cells fated for elimination are seamlessly squeezed out by contracting a band of actin and myosin around and below the cell, preventing any gaps from forming that could disrupt their barriers. Failure to do so can result in aggressive tumors and their invasion by aberrant basal cell extrusion. 1055:
Epithelia turn over at some of the fastest rates in the body. For epithelial layers to maintain constant cell numbers essential to their functions, the number of cells that divide must match those that die. They do this mechanically. If there are too few of the cells, the stretch that they experience
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to punakoidal. They are tightly packed and form a continuous sheet with almost no intercellular spaces. All epithelia is usually separated from underlying tissues by an extracellular fibrous basement membrane. The lining of the mouth, lung alveoli and kidney tubules are all made of epithelial tissue.
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Stratified or compound epithelium differs from simple epithelium in that it is multilayered. It is therefore found where body linings have to withstand mechanical or chemical insult such that layers can be abraded and lost without exposing subepithelial layers. Cells flatten as the layers become more
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that lines the walls of the seminferous tubules in the testes are also of the cuboidal type. Cuboidal cells provide protection and may be active in pumping material in or out of the lumen, or passive depending on their location and specialisation. Simple cuboidal epithelium commonly differentiates to
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Epithelium grown in culture can be identified by examining its morphological characteristics. Epithelial cells tend to cluster together, and have a "characteristic tight pavement-like appearance". But this is not always the case, such as when the cells are derived from a tumor. In these cases, it is
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of the extracellular environment by playing "a sensory role mediating specific signalling cues, including soluble factors in the external cell environment, a secretory role in which a soluble protein is released to have an effect downstream of the fluid flow, and mediation of fluid flow if the cilia
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There are three principal shapes of epithelial cell: squamous (scaly), columnar, and cuboidal. These can be arranged in a singular layer of cells as simple epithelium, either simple squamous, simple columnar, or simple cuboidal, or in layers of two or more cells deep as stratified (layered), or
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In this particular case, the most apical layers (exterior) of cells are dead and lose their nucleus and cytoplasm, instead contain a tough, resistant protein called keratin. This specialization makes the epithelium somewhat water-resistant, so is found in the mammalian skin. The lining of the
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are modified columnar cells and are found between the columnar epithelial cells of the duodenum. They secrete mucus, which acts as a lubricant. Single-layered non-ciliated columnar epithelium tends to indicate an absorptive function. Stratified columnar epithelium is rare but is found in
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Columnar epithelial cells are elongated and column-shaped and have a height of at least four times their width. Their nuclei are elongated and are usually located near the base of the cells. Columnar epithelium forms the lining of the stomach and intestines. The cells here may possess
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with hematopoietic immune cells. The resulting immune functions of these non-hematopoietic, structural cells contribute to the mammalian immune system ("structural immunity"). Relevant aspects of the epithelial cell response to infections are encoded in the
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Transitional epithelia are found in tissues that stretch, and it can appear to be stratified cuboidal when the tissue is relaxed, or stratified squamous when the organ is distended and the tissue stretches. It is sometimes called
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and must be nourished by substances diffusing from the blood vessels in the underlying tissue. The basement membrane acts as a selectively permeable membrane that determines which substances will be able to enter the epithelium.
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stratified squamous epithelium. Other surfaces that separate body cavities from the outside environment are lined by simple squamous, columnar, or pseudostratified epithelial cells. Other epithelial cells line the insides of the
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pseudostratified epithelial cells have cilia. Cilia are capable of energy-dependent pulsatile beating in a certain direction through interaction of cytoskeletal microtubules and connecting structural proteins and enzymes. In the
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Cuboidal epithelial cells have a cube-like shape and appear square in cross-section. The cell nucleus is large, spherical and is in the center of the cell. Cuboidal epithelium is commonly found in secretive tissue such as the
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These are simple columnar epithelial cells whose nuclei appear at different heights, giving the misleading (hence "pseudo") impression that the epithelium is stratified when the cells are viewed in cross section.
1047:. Additionally, the filaments that support these mesoderm-derived tissues are very distinct. Outside of the field of pathology, it is generally accepted that the epithelium arises from all three germ layers. 360:, either squamous, columnar or cuboidal. In some tissues, a layer of columnar cells may appear to be stratified due to the placement of the nuclei. This sort of tissue is called pseudostratified. All 2790: 1039:(both derived from mesoderm) to be true epithelium. This is because such tissues present very different pathology. For that reason, pathologists label cancers in endothelium and mesothelium 423:
that separates it from the underlying connective tissue. In general, it is found where absorption and filtration occur. The thinness of the epithelial barrier facilitates these processes.
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and the free/apical surface faces body fluid or outside. The basement membrane acts as a scaffolding on which epithelium can grow and regenerate after injuries. Epithelial tissue has a
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By layer, epithelium is classed as either simple epithelium, only one cell thick (unilayered), or stratified epithelium having two or more cells in thickness, or multi-layered – as
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from the infolding of epithelium and subsequent growth in the underlying connective tissue. They may be specialized columnar or cuboidal tissues consisting of
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are especially abundant in epithelial tissues. They consist of protein complexes and provide contact between neighbouring cells, between a cell and the
2776: 1330:), "nipple". Epithelium is so called because the name was originally used to describe the translucent covering of small "nipples" of tissue on the 2619: 2558: 1972: 1938: 1808: 1745: 1712: 1622: 1595: 1530: 1498: 2927: 650: 599:. This consists of a layer of cells resting on at least one other layer of epithelial cells, which can be squamous, cuboidal, or columnar. 163: 1056:
rapidly activates cell division. Alternatively, when too many cells accumulate, crowding triggers their death by activation epithelial
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Cell junctions are the contact points between plasma membrane and tissue cells. There are mainly 5 different types of cell junctions:
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often necessary to use certain biochemical markers to make a positive identification. The intermediate filament proteins in the
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Squamous cells have the appearance of thin, flat plates that can look polygonal when viewed from above. Their name comes from
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In this case, the most apical layers of cells are filled with keratin, but they still retain their nuclei. These nuclei are
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Endocrine glands secrete their product into the extracellular space where it is rapidly taken up by the circulatory system.
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form the secretory and duct portions of glands. Stratified cuboidal epithelium protects areas such as the ducts of
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and function of the cells. The basic cell types are squamous, cuboidal, and columnar, classed by their shape.
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in the lungs. Specialized squamous epithelium also forms the lining of cavities such as in blood vessels (as
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Krausgruber T, Fortelny N, Fife-Gernedl V, Senekowitsch M, Schuster LC, Lercher A, et al. (July 2020).
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has cells that can change from squamous to cuboidal, depending on the amount of tension on the epithelium.
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Stratified epithelia (of columnar, cuboidal, or squamous type) can have the following specializations:
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is covered with fast-growing, easily regenerated epithelial cells. A specialised form of epithelium,
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This article is about epithelium in animal anatomy. For the fungal structure of the same name, see
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group are almost exclusively found in epithelial cells, so they are often used for this purpose.
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shown at (3); an uninfected cell shown at (2) and (4) showing the difference between an infected
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Eisenhoffer GT, Loftus PD, Yoshigi M, Otsuna H, Chien CB, Morcos PA, Rosenblatt J (April 2012).
2186:"KRas-transformed epithelia cells invade and partially dedifferentiate by basal cell extrusion" 2184:
Fadul J, Zulueta-Coarasa T, Slattum GM, Redd NM, Jin MF, Redd MJ, et al. (December 2021).
1674: 703:, meaning that they are highly condensed. Parakeratinized epithelium is sometimes found in the 558:. Some columnar cells are specialized for sensory reception such as in the nose, ears and the 3407: 3179: 3100: 3090: 2681: 2646: 2615: 2596: 2554: 2497: 2448: 2389: 2340: 2297: 2274: 2223: 2166: 2101: 2052: 1993: 1968: 1934: 1926: 1905: 1829: 1804: 1741: 1737: 1708: 1678: 1618: 1591: 1564: 1526: 1494: 1300: 1097: 958: 928: 904: 887:, or external "skin", consists of a single layer of epithelial ectoderm from which arises the 616: 464: 420: 416: 396: 341: 1962: 1612: 754:
The lining of the blood and lymphatic vessels are of a specialised form of epithelium called
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apical, though in their most basal layers, the cells can be squamous, cuboidal, or columnar.
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Lepidoptera, Moths and Butterflies: Morphology, Physiology, and Development : Teilband
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Permar's oral embryology and microscopic anatomy: a textbook for students in dental hygiene
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Gu Y, Shea J, Slattum G, Firpo MA, Alexander M, Mulvihill SJ, et al. (January 2015).
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Gudipaty SA, Lindblom J, Loftus PD, Redd MJ, Edes K, Davey CF, et al. (March 2017).
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Exocrine glands secrete their products into a duct that then delivers the product to the
2424: 2201: 2144: 2129:"Crowding induces live cell extrusion to maintain homeostatic cell numbers in epithelia" 2087: 2030: 1866: 766: 3546: 3512: 3451: 3422: 3310: 3260: 3111: 3085: 3032: 2443: 2408: 2384: 2359: 2319:"Recent advances in the molecular pathology, cell biology and genetics of ciliopathies" 2269: 2242: 2218: 2185: 2161: 2128: 2047: 2014: 1730: 1239: 1144: 1057: 954: 939: 873: 837: 620: 580: 518: 493: 426:
In general, epithelial tissues are classified by the number of their layers and by the
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of an organ or onto the free surface of the epithelium. Their secretions include
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oesophagus is an example of a non-keratinized or "moist" stratified epithelium.
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for maximizing the surface area for absorption, and these microvilli may form a
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the regulation and exchange of chemicals between the underlying tissues and a
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Summary showing different epithelial cells/tissues and their characteristics.
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of these cells, which enables a rapid response to immunological challenges.
1244: 1089: 1044: 962: 812: 771: 567: 563: 559: 388: 369: 365: 310: 2685: 2676: 2659: 2650: 2600: 2501: 2452: 2393: 2360:"Deciphering cell-cell interactions and communication from gene expression" 2344: 2278: 2227: 2170: 2105: 2056: 2015:"Mechanical stretch triggers rapid epithelial cell division through Piezo1" 3659: 3635: 3629: 3619: 3541: 3479: 3275: 3270: 3218: 3213: 3184: 3126: 2994: 1235: 1222: 1016: 1005: 994: 974: 946:, or they build up the paracellular barrier of epithelia and control the 700: 2409:"Structural cells are key regulators of organ-specific immune responses" 2259: 2152: 2038: 1310:, sweat glands are also damaged, causing a frosty coating of the skin. 923:
is made up of laminin (glycoproteins) secreted by epithelial cells. The
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Histology: A Text and Atlas: With Correlated Cell and Molecular Biology
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Freshney RI (2002). "Introduction". In Freshney RI, Freshney M (eds.).
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are made up of epithelial cells. Functions of epithelial cells include
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Green H (September 2008). "The birth of therapy with cultured cells".
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Human cheek cells (nonkeratinized stratified squamous epithelium) 500×
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is a single layer of cells with every cell in direct contact with the
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beneath the basal lamina is made up of collagen proteins secreted by
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Epithelial tissue cells can adopt shapes of varying complexity from
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Nagpal R, Patel A, Gibson MC (March 2008). "Epithelial topology".
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of substances from the underlying connective tissue, through the
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Absorb water and digested food in the lining of digestive canal.
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Armingol E, Officer A, Harismendy O, Lewis NE (February 2021).
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Histology of sweat gland showing stratified cuboidal epithelium
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Essential IVF : basic research and clinical applications
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Epithelial tissues are derived from all of the embryological
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The nature of disease: pathology for the health professions
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Color atlas of cytology, histology, and microscopic anatomy
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Histology of female urethra showing transitional epithelium
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Cancers originating from the epithelium are classified as
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Glandular tissue is the type of epithelium that forms the
1803:(3rd ed.). John Wiley & Sons. pp. 110–115. 1669:
DiFiore's Atlas of Histology with Functional Correlations
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forming a tube or tubule with cilia projecting into the
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Stratified squamous epithelium of the skin (thick skin)
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Stratified squamous epithelium of the skin (thin skin)
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The slide shows at (1) an epithelial cell infected by
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Yamaguchi Y, Brenner M, Hearing VJ (September 2007).
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Adams M, Smith UM, Logan CV, Johnson CA (May 2008).
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From cells to organs: a histology textbook and atlas
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Epithelial tissues have as their primary functions:
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List of distinct cell types in the adult human body
860:, and is known as vascular endothelium, and lining 321:) tissues line the outer surfaces of many internal 76: 64: 52: 47: 30: 2296:(4th ed.). New York : Garland. p. 1267. 2070:Rosenblatt J, Raff MC, Cramer LP (November 2001). 1992:(4th ed.). New York : Garland. p. 1067. 1729: 1552: 1306:When epithelial cells or tissues are damaged from 977:(six of which come together to make a connexion). 903:The basal surface of epithelial tissue rests on a 2553:. Boston: Kluwer Academic Publishers. p. 3. 1967:. Lippincott Williams & Wilkins. p. 55. 1696: 1694: 1139:. There are two major classifications of glands: 623:, where the cilia propel the ovum to the uterus. 1234:Epithelial cells express many genes that encode 384:. Compound epithelium has protective functions. 2759:Stratified squamous epithelium of the esophagus 1514: 1512: 1510: 1080:Different characteristics of glands of the body 811:Tissues that line the inside of the mouth, the 403:are especially abundant in epithelial tissues. 16:Tissue lining the surfaces of organs in animals 2611:Basement membranes: cell and molecular biology 1673:. Lippincott Williams & Wilkins. pp.  1665:Eroschenko VP (2008). "Integumentary System". 1587:Color atlas of human anatomy: Locomotor system 3376: 3142: 2784: 1736:. Lippincott Williams & Wilkins. p.  1546: 1544: 1542: 1482: 1480: 1088:to protect the tissues that lie beneath from 1043:, whereas true epithelial cancers are called 273: 8: 2733:Stratified squamous epithelium of the vagina 1925:Kristensen NP, Georges C (1 December 2003). 1559:(3rd ed.). Benjamin/Cummings. pp.  1212:on epithelial cells provide chemosensation, 722:since it is almost exclusively found in the 707:and in the upper regions of the oesophagus. 387:Epithelial layers contain no blood vessels ( 1849:Iber, Dagmar; Vetter, Roman (12 May 2022). 1801:Anatomy and Physiology from Science to Life 1490:Dellmann's Textbook of Veterinary Histology 301:is a thin, continuous, protective layer of 3383: 3369: 3361: 3149: 3135: 3127: 2972: 2965: 2917: 2883: 2837: 2791: 2777: 2769: 1904:. Boston: Benjamin Cummings. p. 133. 280: 266: 105: 36: 2675: 2491: 2442: 2432: 2383: 2334: 2268: 2258: 2217: 2160: 2095: 2046: 1884: 1874: 864:as lymphatic endothelium. Another type, 1200:, and they commonly exist as a sheet of 673: 546:. Other ciliated cells are found in the 432: 391:), so they must receive nourishment via 2476:"A gene atlas of 'structural immunity'" 1476: 1353: 245: 194: 171: 143: 120: 113: 2721:Diagrams of simple squamous epithelium 1096:, invasion by pathogens, and physical 1072:Forms of secretion in glandular tissue 325:, the corresponding inner surfaces of 93: 27: 2660:"The regulation of skin pigmentation" 2608:Kefalides NA, Borel JP, eds. (2005). 1487:Eurell JA, Frappier BL, eds. (2006). 1187:Sensing the extracellular environment 7: 2928:Pseudostratified columnar epithelium 651:pseudostratified columnar epithelium 2664:The Journal of Biological Chemistry 1108:the secretion of hormones into the 788:Epithelium lines both the outside ( 109:This article is part of a series on 2713:Simple squamous epithelium of the 1933:. Walter de Gruyter. p. 484. 796:of bodies. The outermost layer of 784:Table of epithelia of human organs 254:Table of epithelia of human organs 14: 2549:Van Blerkom J, Gregory L (2004). 1728:Melfi RC, Alley KE, eds. (2000). 1416:Epithelial-mesenchymal transition 574:which are similar to microvilli. 542:to move mucus in the function of 3718: 3717: 2614:. Gulf Professional Publishing. 1392: 1380: 1368: 1356: 1280:and an uninfected cell nucleus. 90:Anatomical terms of microanatomy 1799:Jenkins GW, Tortora GJ (2013). 1493:. Wiley-Blackwell. p. 18. 643:stratified cuboidal epithelium 2908:Stratified columnar epithelium 2901:Stratified cuboidal epithelium 2894:Stratified squamous epithelium 1769:. Amirsys, Inc. Archived from 1259:Epithelial cell infected with 792:) and the inside cavities and 647:stratified columnar epithelium 639:stratified squamous epithelium 1: 2294:Molecular Biology of the Cell 2097:10.1016/S0960-9822(01)00587-5 1990:Molecular biology of the cell 1326:), "on" or "upon", and θηλή ( 313:, the outermost layer of the 1640:"Simple Cuboidal Epithelium" 1555:Human Anatomy and Physiology 1019:(e.g., the inner linings of 852:, forms the inner lining of 329:, and the inner surfaces of 2701:Epithelium Photomicrographs 2474:Minton K (September 2020). 2323:Journal of Medical Genetics 1824:Ross MH, Pawlina W (2015). 1522:Culture of epithelial cells 1342:senses; the plural form is 1314:Etymology and pronunciation 844:. The outer surface of the 3770: 2874:Simple columnar epithelium 2867:Simple cuboidal epithelium 2848:Simple squamous epithelium 2480:Nature Reviews. Immunology 2376:10.1038/s41576-020-00292-x 2210:10.1038/s41467-021-27513-z 1450:Retinal pigment epithelium 1322:uses the Greek roots ἐπί ( 1192:Some epithelial cells are 781: 18: 3713: 2493:10.1038/s41577-020-0398-y 2434:10.1038/s41586-020-2424-4 1525:. John Wiley & Sons. 1238:and proteins involved in 1008:(e.g., the lining of the 868:, forms the walls of the 88: 35: 2364:Nature Reviews. Genetics 1902:Anatomy & Physiology 1876:10.3389/fphy.2022.898160 1363:Squamous epithelium 100× 173:Cuboidal epithelial cell 145:Columnar epithelial cell 122:Squamous epithelial cell 3176:Cell adhesion molecules 2942:Transitional epithelium 2336:10.1136/jmg.2007.054999 1617:. Thieme. p. 102. 1440:Iris pigment epithelium 1435:outer enamel epithelium 1240:cell-cell communication 891:, an outer covering of 657:Transitional epithelium 500:that covers the female 382:transcellular transport 2933:Respiratory epithelium 2764:Microanatomy Web Atlas 2677:10.1074/jbc.R700026200 1701:van Lommel AT (2002). 1265: 1227: 1198:respiratory epithelium 1081: 1073: 1010:gastrointestinal tract 948:paracellular transport 834:gastrointestinal tract 779: 634: 2190:Nature Communications 1961:McConnell TH (2006). 1590:. Thieme. p. 8. 1258: 1251:Clinical significance 1190: 1079: 1071: 769: 663:Stratified epithelium 632: 544:mucociliary clearance 538:. Other cells may be 195:Specialised epithelia 1855:Frontiers in Physics 1445:Neuroepithelial cell 1334:. The word has both 1270:Chlamydia pneumoniae 1262:Chlamydia pneumoniae 1230:Host immune response 1115:to provide sensation 944:extracellular matrix 800:is composed of dead 309:. An example is the 307:extracellular matrix 3630:Meristematic tissue 2670:(38): 27557–27561. 2425:2020Natur.583..296K 2260:10.7554/eLife.04069 2202:2021NatCo..12.7180F 2153:10.1038/nature10999 2145:2012Natur.484..546E 2088:2001CBio...11.1847R 2039:10.1038/nature21407 2031:2017Natur.543..118G 1886:20.500.11850/547113 1867:2022FrP....10.8160I 1773:on 19 December 2012 1460:Sulcular epithelium 1421:Epithelial polarity 883:In arthropods, the 802:stratified squamous 506:germinal epithelium 498:germinal epithelium 465:alveolar epithelium 42:Types of epithelium 3392:Biological tissues 3074:Myoepithelial cell 2643:10.1002/bies.20722 2593:10.1002/bies.20797 2528:Cancer Research UK 2292:Alberts B (2002). 1988:Alberts B (2002). 1763:"Epithelial Cells" 1584:Platzer W (2008). 1551:Marieb EM (1995). 1266: 1110:circulatory system 1082: 1074: 959:adherens junctions 819:, and part of the 808:epithelial cells. 780: 635: 71:H2.00.02.0.00002 3754:Tissues (biology) 3736: 3735: 3523:Phloem parenchyma 3358: 3357: 3257:membrane proteins 3180:Adherens junction 3124: 3123: 3120: 3119: 3062: 3061: 2957: 2956: 2916: 2915: 2882: 2881: 2748:Histology at KUMC 2737:Histology at KUMC 2726:Histology at KUMC 2706:Histology at KUMC 2621:978-0-12-153356-4 2560:978-1-4020-7551-3 2530:. 28 October 2014 2524:"Types of cancer" 2419:(7815): 296–302. 2139:(7395): 546–549. 2082:(23): 1847–1857. 2025:(7643): 118–121. 1974:978-0-7817-5317-3 1940:978-3-11-016210-3 1900:Marieb E (2011). 1810:978-1-118-12920-3 1747:978-0-683-30644-6 1714:978-1-4020-7257-4 1624:978-3-13-562404-4 1611:Kühnel W (2003). 1597:978-3-13-533306-9 1532:978-0-471-40121-6 1500:978-0-7817-4148-4 1350:Additional images 1301:connective tissue 929:connective tissue 905:basement membrane 899:Basement membrane 862:lymphatic vessels 738: 737: 627: 626: 617:respiratory tract 550:, the uterus and 421:basement membrane 417:Simple epithelium 412:Simple epithelium 397:basement membrane 342:connective tissue 299:epithelial tissue 290: 289: 104: 103: 99: 3761: 3721: 3720: 3671:Vascular cambium 3557:Xylem parenchyma 3385: 3378: 3371: 3362: 3151: 3144: 3137: 3128: 2973: 2966: 2918: 2884: 2838: 2793: 2786: 2779: 2770: 2689: 2679: 2654: 2625: 2604: 2565: 2564: 2546: 2540: 2539: 2537: 2535: 2520: 2514: 2513: 2495: 2471: 2465: 2464: 2446: 2436: 2404: 2398: 2397: 2387: 2355: 2349: 2348: 2338: 2314: 2308: 2307: 2289: 2283: 2282: 2272: 2262: 2238: 2232: 2231: 2221: 2181: 2175: 2174: 2164: 2124: 2118: 2117: 2099: 2067: 2061: 2060: 2050: 2010: 2004: 2003: 1985: 1979: 1978: 1958: 1952: 1951: 1949: 1947: 1922: 1916: 1915: 1897: 1891: 1890: 1888: 1878: 1846: 1840: 1839: 1821: 1815: 1814: 1796: 1783: 1782: 1780: 1778: 1758: 1752: 1751: 1735: 1725: 1719: 1718: 1698: 1689: 1688: 1672: 1662: 1656: 1655: 1653: 1651: 1635: 1629: 1628: 1608: 1602: 1601: 1581: 1575: 1574: 1558: 1548: 1537: 1536: 1516: 1505: 1504: 1484: 1396: 1384: 1372: 1360: 1274:inclusion bodies 1236:immune mediators 1218:mechanosensation 1196:, especially in 1176:digestive juices 1141:endocrine glands 1135:, which secrete 1123:Glandular tissue 1031:do not consider 925:reticular lamina 842:endocrine glands 823:are composed of 696:Parakeratinized 674: 605:Pseudostratified 479:), and in other 433: 282: 275: 268: 164:Pseudostratified 106: 96:edit on Wikidata 40: 28: 3769: 3768: 3764: 3763: 3762: 3760: 3759: 3758: 3739: 3738: 3737: 3732: 3709: 3642:Ground meristem 3501:Vascular tissue 3472:Subsidiary cell 3427: 3394: 3389: 3359: 3354: 3320: 3282: 3161: 3155: 3125: 3116: 3079:Serous demilune 3058: 3037: 3016: 2953: 2912: 2878: 2829: 2803: 2797: 2752:epithel-epith15 2741:epithel-epith14 2730:epithel-epith12 2710:epithel-epith02 2697: 2692: 2657: 2628: 2622: 2607: 2578: 2574: 2572:Further reading 2569: 2568: 2561: 2548: 2547: 2543: 2533: 2531: 2522: 2521: 2517: 2473: 2472: 2468: 2406: 2405: 2401: 2357: 2356: 2352: 2316: 2315: 2311: 2304: 2291: 2290: 2286: 2240: 2239: 2235: 2183: 2182: 2178: 2126: 2125: 2121: 2076:Current Biology 2069: 2068: 2064: 2012: 2011: 2007: 2000: 1987: 1986: 1982: 1975: 1960: 1959: 1955: 1945: 1943: 1941: 1924: 1923: 1919: 1912: 1899: 1898: 1894: 1848: 1847: 1843: 1836: 1823: 1822: 1818: 1811: 1798: 1797: 1786: 1776: 1774: 1760: 1759: 1755: 1748: 1727: 1726: 1722: 1715: 1700: 1699: 1692: 1685: 1664: 1663: 1659: 1649: 1647: 1637: 1636: 1632: 1625: 1610: 1609: 1605: 1598: 1583: 1582: 1578: 1571: 1550: 1549: 1540: 1533: 1518: 1517: 1508: 1501: 1486: 1485: 1478: 1473: 1407: 1400: 1397: 1388: 1385: 1376: 1373: 1364: 1361: 1352: 1316: 1308:cystic fibrosis 1295:. In contrast, 1253: 1232: 1202:polarised cells 1189: 1145:exocrine glands 1125: 1092:, desiccation, 1066: 1053: 983: 955:tight junctions 937: 901: 786: 764: 743: 677:Specialization 665: 621:fallopian tubes 585:salivary glands 548:fallopian tubes 519:salivary glands 494:exocrine glands 414: 409: 286: 100: 43: 24: 17: 12: 11: 5: 3767: 3765: 3757: 3756: 3751: 3741: 3740: 3734: 3733: 3731: 3730: 3725: 3714: 3711: 3710: 3708: 3707: 3700: 3699: 3698: 3693: 3676: 3675: 3674: 3673: 3668: 3656: 3655: 3654: 3649: 3644: 3625: 3624: 3623: 3622: 3617: 3605: 3598: 3597: 3596: 3591: 3586: 3581: 3562: 3561: 3560: 3559: 3554: 3549: 3547:Vessel element 3544: 3532: 3531: 3530: 3525: 3520: 3515: 3513:Companion cell 3496: 3495: 3494: 3493: 3488: 3476: 3475: 3474: 3469: 3464: 3459: 3454: 3452:Bulliform cell 3437: 3435: 3429: 3428: 3426: 3425: 3420: 3415: 3410: 3404: 3402: 3396: 3395: 3390: 3388: 3387: 3380: 3373: 3365: 3356: 3355: 3353: 3352: 3338: 3328: 3326: 3322: 3321: 3319: 3318: 3313: 3311:Focal adhesion 3308: 3299: 3293: 3291: 3284: 3283: 3281: 3280: 3279: 3278: 3273: 3268: 3261:Tight junction 3252: 3251: 3250: 3249: 3244: 3239: 3224: 3223: 3222: 3221: 3202: 3201: 3200: 3199: 3189: 3188: 3187: 3172: 3170: 3163: 3162: 3156: 3154: 3153: 3146: 3139: 3131: 3122: 3121: 3118: 3117: 3115: 3114: 3105: 3104: 3103: 3098: 3093: 3082: 3081: 3076: 3070: 3068: 3064: 3063: 3060: 3059: 3057: 3056: 3051: 3045: 3043: 3039: 3038: 3036: 3035: 3033:Alveolar gland 3030: 3024: 3022: 3018: 3017: 3015: 3014: 3013: 3012: 3007: 2997: 2992: 2991: 2990: 2979: 2977: 2970: 2963: 2959: 2958: 2955: 2954: 2952: 2951: 2950: 2949: 2938: 2937: 2936: 2935: 2924: 2922: 2914: 2913: 2911: 2910: 2904: 2903: 2897: 2896: 2890: 2888: 2880: 2879: 2877: 2876: 2870: 2869: 2863: 2862: 2861: 2860: 2855: 2844: 2842: 2835: 2831: 2830: 2828: 2827: 2822: 2817: 2811: 2809: 2805: 2804: 2798: 2796: 2795: 2788: 2781: 2773: 2767: 2766: 2761: 2756: 2745: 2734: 2723: 2718: 2703: 2696: 2695:External links 2693: 2691: 2690: 2655: 2637:(3): 260–266. 2626: 2620: 2605: 2587:(9): 897–903. 2575: 2573: 2570: 2567: 2566: 2559: 2541: 2515: 2486:(9): 518–519. 2466: 2399: 2350: 2329:(5): 257–267. 2309: 2302: 2284: 2233: 2176: 2119: 2062: 2005: 1998: 1980: 1973: 1953: 1939: 1917: 1911:978-0321616401 1910: 1892: 1841: 1835:978-1451187427 1834: 1816: 1809: 1784: 1753: 1746: 1720: 1713: 1690: 1683: 1657: 1646:. Amirsys, Inc 1630: 1623: 1603: 1596: 1576: 1569: 1538: 1531: 1506: 1499: 1475: 1474: 1472: 1469: 1468: 1467: 1462: 1457: 1452: 1447: 1442: 1437: 1428: 1423: 1418: 1413: 1406: 1403: 1402: 1401: 1398: 1391: 1389: 1386: 1379: 1377: 1374: 1367: 1365: 1362: 1355: 1351: 1348: 1315: 1312: 1252: 1249: 1231: 1228: 1188: 1185: 1184: 1183: 1152: 1124: 1121: 1120: 1119: 1116: 1113: 1106: 1100: 1065: 1062: 1058:cell extrusion 1052: 1049: 1025: 1024: 1013: 1002: 982: 979: 967:hemidesmosomes 940:Cell junctions 936: 935:Cell junctions 933: 900: 897: 825:nonkeratinized 763: 760: 742: 739: 736: 735: 715: 709: 708: 697: 693: 692: 688: 682: 681: 678: 664: 661: 625: 624: 607: 601: 600: 527: 523: 522: 515:mammary glands 489: 485: 484: 445: 441: 440: 437: 413: 410: 408: 407:Classification 405: 401:Cell junctions 368:, filtration, 350:nervous tissue 317:. Epithelial ( 288: 287: 285: 284: 277: 270: 262: 259: 258: 257: 256: 248: 247: 243: 242: 241: 240: 239: 238: 233: 225: 220: 215: 210: 205: 197: 196: 192: 191: 190: 189: 184: 176: 175: 169: 168: 167: 166: 161: 156: 148: 147: 141: 140: 139: 138: 133: 125: 124: 118: 117: 111: 110: 102: 101: 92: 86: 85: 80: 74: 73: 68: 62: 61: 56: 50: 49: 45: 44: 41: 33: 32: 15: 13: 10: 9: 6: 4: 3: 2: 3766: 3755: 3752: 3750: 3747: 3746: 3744: 3729: 3726: 3724: 3716: 3715: 3712: 3706: 3705: 3701: 3697: 3694: 3692: 3689: 3688: 3687: 3686: 3681: 3678: 3677: 3672: 3669: 3667: 3664: 3663: 3662: 3661: 3657: 3653: 3650: 3648: 3645: 3643: 3640: 3639: 3638: 3637: 3632: 3631: 3627: 3626: 3621: 3618: 3616: 3613: 3612: 3611: 3610: 3606: 3604: 3603: 3599: 3595: 3592: 3590: 3587: 3585: 3582: 3580: 3577: 3576: 3575: 3574: 3569: 3568: 3567:Ground tissue 3564: 3563: 3558: 3555: 3553: 3550: 3548: 3545: 3543: 3540: 3539: 3538: 3537: 3533: 3529: 3526: 3524: 3521: 3519: 3516: 3514: 3511: 3510: 3509: 3508: 3503: 3502: 3498: 3497: 3492: 3489: 3487: 3484: 3483: 3482: 3481: 3477: 3473: 3470: 3468: 3467:Pavement cell 3465: 3463: 3460: 3458: 3455: 3453: 3450: 3449: 3448: 3447: 3442: 3441:Dermal tissue 3439: 3438: 3436: 3434: 3430: 3424: 3421: 3419: 3416: 3414: 3411: 3409: 3406: 3405: 3403: 3401: 3397: 3393: 3386: 3381: 3379: 3374: 3372: 3367: 3366: 3363: 3350: 3346: 3342: 3339: 3337: 3333: 3330: 3329: 3327: 3323: 3317: 3314: 3312: 3309: 3307: 3303: 3302:Hemidesmosome 3300: 3298: 3295: 3294: 3292: 3290: 3285: 3277: 3274: 3272: 3269: 3267: 3264: 3263: 3262: 3258: 3254: 3253: 3248: 3245: 3243: 3240: 3238: 3235: 3234: 3233: 3229: 3226: 3225: 3220: 3217: 3216: 3215: 3211: 3207: 3204: 3203: 3198: 3195: 3194: 3193: 3190: 3186: 3183: 3182: 3181: 3177: 3174: 3173: 3171: 3169: 3164: 3160: 3152: 3147: 3145: 3140: 3138: 3133: 3132: 3129: 3113: 3109: 3106: 3102: 3101:Intercalated 3099: 3097: 3094: 3092: 3089: 3088: 3087: 3084: 3083: 3080: 3077: 3075: 3072: 3071: 3069: 3065: 3055: 3054:Mucous glands 3052: 3050: 3049:Serous glands 3047: 3046: 3044: 3040: 3034: 3031: 3029: 3028:Tubular gland 3026: 3025: 3023: 3019: 3011: 3008: 3006: 3003: 3002: 3001: 2998: 2996: 2993: 2989: 2986: 2985: 2984: 2981: 2980: 2978: 2974: 2971: 2967: 2964: 2960: 2948: 2945: 2944: 2943: 2940: 2939: 2934: 2931: 2930: 2929: 2926: 2925: 2923: 2919: 2909: 2906: 2905: 2902: 2899: 2898: 2895: 2892: 2891: 2889: 2885: 2875: 2872: 2871: 2868: 2865: 2864: 2859: 2856: 2854: 2851: 2850: 2849: 2846: 2845: 2843: 2839: 2836: 2832: 2826: 2823: 2821: 2818: 2816: 2813: 2812: 2810: 2806: 2801: 2794: 2789: 2787: 2782: 2780: 2775: 2774: 2771: 2765: 2762: 2760: 2757: 2754: 2753: 2749: 2746: 2743: 2742: 2738: 2735: 2732: 2731: 2727: 2724: 2722: 2719: 2716: 2712: 2711: 2707: 2704: 2702: 2699: 2698: 2694: 2687: 2683: 2678: 2673: 2669: 2665: 2661: 2656: 2652: 2648: 2644: 2640: 2636: 2632: 2627: 2623: 2617: 2613: 2612: 2606: 2602: 2598: 2594: 2590: 2586: 2582: 2577: 2576: 2571: 2562: 2556: 2552: 2545: 2542: 2529: 2525: 2519: 2516: 2511: 2507: 2503: 2499: 2494: 2489: 2485: 2481: 2477: 2470: 2467: 2462: 2458: 2454: 2450: 2445: 2440: 2435: 2430: 2426: 2422: 2418: 2414: 2410: 2403: 2400: 2395: 2391: 2386: 2381: 2377: 2373: 2369: 2365: 2361: 2354: 2351: 2346: 2342: 2337: 2332: 2328: 2324: 2320: 2313: 2310: 2305: 2303:0-8153-4072-9 2299: 2295: 2288: 2285: 2280: 2276: 2271: 2266: 2261: 2256: 2252: 2248: 2244: 2237: 2234: 2229: 2225: 2220: 2215: 2211: 2207: 2203: 2199: 2195: 2191: 2187: 2180: 2177: 2172: 2168: 2163: 2158: 2154: 2150: 2146: 2142: 2138: 2134: 2130: 2123: 2120: 2115: 2111: 2107: 2103: 2098: 2093: 2089: 2085: 2081: 2077: 2073: 2066: 2063: 2058: 2054: 2049: 2044: 2040: 2036: 2032: 2028: 2024: 2020: 2016: 2009: 2006: 2001: 1999:0-8153-4072-9 1995: 1991: 1984: 1981: 1976: 1970: 1966: 1965: 1957: 1954: 1942: 1936: 1932: 1928: 1921: 1918: 1913: 1907: 1903: 1896: 1893: 1887: 1882: 1877: 1872: 1868: 1864: 1860: 1856: 1852: 1845: 1842: 1837: 1831: 1827: 1820: 1817: 1812: 1806: 1802: 1795: 1793: 1791: 1789: 1785: 1772: 1768: 1764: 1757: 1754: 1749: 1743: 1739: 1734: 1733: 1724: 1721: 1716: 1710: 1706: 1705: 1697: 1695: 1691: 1686: 1684:9780781770576 1680: 1676: 1671: 1670: 1661: 1658: 1645: 1641: 1634: 1631: 1626: 1620: 1616: 1615: 1607: 1604: 1599: 1593: 1589: 1588: 1580: 1577: 1572: 1570:0-8053-4281-8 1566: 1562: 1557: 1556: 1547: 1545: 1543: 1539: 1534: 1528: 1524: 1523: 1515: 1513: 1511: 1507: 1502: 1496: 1492: 1491: 1483: 1481: 1477: 1470: 1466: 1463: 1461: 1458: 1456: 1453: 1451: 1448: 1446: 1443: 1441: 1438: 1436: 1432: 1429: 1427: 1424: 1422: 1419: 1417: 1414: 1412: 1409: 1408: 1404: 1395: 1390: 1383: 1378: 1371: 1366: 1359: 1354: 1349: 1347: 1345: 1341: 1337: 1333: 1329: 1325: 1321: 1313: 1311: 1309: 1304: 1302: 1298: 1294: 1289: 1287: 1281: 1279: 1275: 1271: 1264: 1263: 1257: 1250: 1248: 1246: 1241: 1237: 1229: 1226: 1224: 1219: 1215: 1214:thermoception 1211: 1210:Primary cilia 1207: 1203: 1199: 1195: 1186: 1181: 1177: 1173: 1169: 1165: 1161: 1157: 1153: 1150: 1149: 1148: 1146: 1142: 1138: 1134: 1130: 1122: 1117: 1114: 1111: 1107: 1105: 1101: 1099: 1095: 1091: 1087: 1086: 1085: 1078: 1070: 1063: 1061: 1059: 1051:Cell turnover 1050: 1048: 1046: 1042: 1038: 1034: 1030: 1022: 1021:body cavities 1018: 1014: 1011: 1007: 1003: 1000: 996: 992: 991: 990: 988: 980: 978: 976: 972: 971:gap junctions 968: 964: 960: 956: 951: 949: 945: 941: 934: 932: 930: 926: 922: 917: 914: 910: 906: 898: 896: 894: 890: 886: 881: 879: 875: 871: 867: 863: 859: 855: 854:blood vessels 851: 847: 843: 839: 835: 831: 826: 822: 818: 814: 809: 807: 803: 799: 795: 791: 785: 777: 773: 768: 761: 759: 757: 752: 748: 740: 733: 729: 725: 721: 716: 714: 711: 710: 706: 702: 698: 695: 694: 689: 687: 684: 683: 679: 676: 675: 672: 669: 662: 660: 658: 654: 652: 648: 644: 640: 631: 622: 618: 613: 608: 606: 603: 602: 598: 594: 590: 586: 582: 577: 573: 569: 565: 561: 557: 553: 552:central canal 549: 545: 541: 537: 533: 528: 525: 524: 520: 516: 512: 507: 503: 499: 495: 490: 487: 486: 482: 481:body cavities 478: 474: 470: 466: 462: 458: 454: 450: 446: 443: 442: 438: 435: 434: 431: 429: 424: 422: 418: 411: 406: 404: 402: 398: 394: 390: 385: 383: 379: 375: 371: 367: 363: 359: 353: 351: 347: 346:muscle tissue 343: 340:, along with 339: 336: 332: 331:blood vessels 328: 327:body cavities 324: 320: 316: 312: 308: 304: 300: 296: 295: 283: 278: 276: 271: 269: 264: 263: 261: 260: 255: 252: 251: 250: 249: 244: 237: 234: 232: 229: 228: 226: 224: 221: 219: 216: 214: 211: 209: 206: 204: 201: 200: 199: 198: 193: 188: 185: 183: 180: 179: 178: 177: 174: 170: 165: 162: 160: 157: 155: 152: 151: 150: 149: 146: 142: 137: 134: 132: 129: 128: 127: 126: 123: 119: 116: 112: 108: 107: 97: 91: 87: 84: 81: 79: 75: 72: 69: 67: 63: 60: 57: 55: 51: 46: 39: 34: 29: 26: 22: 3702: 3683: 3679: 3666:Cork cambium 3658: 3634: 3628: 3609:Sclerenchyma 3607: 3600: 3584:Chlorenchyma 3571: 3565: 3534: 3518:Phloem fiber 3505: 3499: 3478: 3444: 3440: 3412: 3297:Basal lamina 3228:Cytoskeleton 3210:Gap junction 3206:Ion channels 3158: 3157:Proteins of 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Index

Pileipellis

MeSH
D004848
TH
H2.00.02.0.00002
FMA
9639
Anatomical terms of microanatomy
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Epithelia
Squamous epithelial cell
Simple
Stratified
Columnar epithelial cell
Simple
Stratified
Pseudostratified
Cuboidal epithelial cell
Simple
Stratified
Olfactory
Respiratory
Intestinal
Transitional
Vaginal
female
male
Table of epithelia of human organs
v

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