It is a thin, continuous, protective layer of cells. ×430) The layer of cells forming the epidermis of the skin and the surface layer of mucous and serous membranes. liums. One tubule was selected from each section and from each tubule height of germinal, However, we cannot fully agree that only the mature squamous, The epithelial regeneration was somewhat accelerated in groups B, C and D which were given low dose, medium dose and high dose cocoa extract respectively on days 7 and 14 of wound healing, but the thickness of, The scientists performed studies in mice to demonstrate that these cells play an essential role in forming and repairing the intestinal, The prominent cell was an early generation of spermatids with round nuclei found in the upper layer of seminiferous, Immunohistochemical studies showed that integrin [beta]1 is expressed by both basal cells of the limbus and cornea and that integrin [alpha]9 is expressed at limbus basal, UA was the lesion with the highest mean of RANKL-positive cells in the lining, Karapanos et al., "Foregut duplication cysts of the stomach with respiratory, However, a large number of NEDD9 immunoreactive cells were identified in the pulmonary, The staining of positive cells was evaluated for the entire, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, atypical glandular cells of undetermined significance, THE EFFECT OF FICUS CARICA ON LEAD ACETATE INDUCED CHANGES IN THE HEIGHT OF GERMINAL EPITHELIUM OF SEMINIFEROUS TUBULES OF ADULT RAT TESTES, Papillary Immature Metaplasia and Thin High-Grade Squamous Intraepithelial Lesion Originate in Early Metaplastic Epithelium of the Cervix, INFLAMMATORY CHANGES IN BUCCAL WOUND HEALING OF ALBINO RATS THROUGH COCOA POWDER EXTRACT, Stem Cell Niqhe In Colon Harbors 10 Billion Cells A Day, Characterization of Seminiferous Epithelium Stages in the Wild Javan Muntjac (Muntiacus muntjak muntjak) Using the Tubular Morphology Method, Limbal Stem Cell Transplantation: Clinical Results, Limits, and Perspectives, A Comparison of Ki67, Syndecan-1 (CD138), and Molecular RANK, RANKL, and OpG Triad Expression in Odontogenic Keratocyts, Unicystic Ameloblastoma, and Dentigerous Cysts, A Midgut Duplication Cyst Lined by Respiratory Epithelium, Alterations at the Synthesis and Degradation of E-cadherin in the Human Lungs with Emphysema, Markers of proliferation and cytokeratins in the differential diagnosis of jaw cysts, A Study on Structural Characteristics of Intestinal Tract of the Air-Breathing Loach, Paramisgurnus dabryanus (Sauvage, 1878), epithelium with proliferating rete processes, Epithelium-restricted ESE-1-related Ets factor, Epithelium-specific Ets transcription factor 1, (in animals) a layer of covering cells lying on a basement membrane that is called simple epithelium when one cell thick and compound epithelium when several cells thick, and usually covers connective tissue embryologically derived from the. https://medical-dictionary.thefreedictionary.com/epithelium. Epithelium consisting of secretory cells. An example is the epidermis, the outermost layer of the skin. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Epithelial is the medical term meaning pertaining to epithelium. 'Nip it in the butt' or 'Nip it in the bud'. Epithelium is classified into types on the basis of the number of layers deep and the shape of the superficial cells. “Epithelium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/epithelium. Epithelium serves the general functions of protection, absorption, and secretion, and specialized functions such as movement of substances through ducts, production of germ cells, and reception of stimuli. Its ability to regenerate is excellent; it may replace itself as frequently as every 24 hr. Synonym: The nonkeratinized epithelium that lines the gingival sulcus. They are devoid of blood vessels. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'epithelium.' Fecal is the medical term meaning pertaining to stool. epithelium. Epithelium consisting of flat, platelike cells in a single layer. Epithelium is one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue. Cells making up the epithelium may be flat (squamous), cube-shaped (cuboidal), or cylindrical (columnar). The purely cellular avascular layer covering all the free surfaces, cutaneous, mucous, and serous, including the glands and other structures derived therefrom. The epithelium may include goblet cells, which secrete mucus. The thin, membranous tissue that lines most of the internal and external surfaces of an animal's body. Meaning and definition of epithelium: The layer of cells covering internal and external surfaces of the body. the cellular covering of internal and external surfaces of the body, including the lining of vessels and other small cavities. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! The layer of cells forming the epidermis of the skin and the surface layer of mucous and serous membranes. Medical Definition of epithelium : a membranous cellular tissue that covers a free surface or lines a tube or cavity of an animal body and serves especially to enclose and protect the other parts of the body, to produce secretions and excretions, and to function in assimilation Combined epithelial layers of the enamel organ, which form a protective layer over the enamel crown as it erupts and then become the primary epithelial attachment surrounding the tooth. GLANDULAR EPITHELIUM: (Orig. This type is present in the respiratory tract and fallopian tubes. Synonym: Squamous epithelium that lines the subarachnoid and subdural cavities, the chambers of the eye, and the perilymphatic spaces of the ear. Britannica English: Translation of epithelium for Arabic Speakers, Britannica.com: Encyclopedia article about epithelium. Epithelium:The outside layer of cells that covers all the free, open surfaces of the body including the skin, and mucous membranes that communicate with the outside of the body. A band of nonkeratinized stratified squamous epithelium that attaches both to the gingiva (on one side) and the crown of the tooth (on the other). See: Epithelium with hairlike processes on the surface that wave actively only in one direction. Can you spell these 10 commonly misspelled words? Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Delivered to your inbox! Modified forms of epithelium include ciliated, pseudostratified, glandular, and neuroepithelium. Definition: layers of cells that line hollow organs and glands. The cells rest on a basement membrane and lie in close approximation with little intercellular material between them. This type of tissue is found only in the urinary system (renal pelvis, ureter, bladder, and a part of the urethra). By contrast the endothelium is the layer of cells lining the closed internal spaces of the body such as the blood vessels and Please tell us where you read or heard it (including the quote, if possible). Epithelium composed of cylindrical cells. New Latin, from epi- + Greek thēlē nipple — more at feminine. The epithelium may be simple, consisting of a single layer, or stratified, consisting of several layers.
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