Epithelium Ep`i*the"li*um, n.; pl. E. {Epitheliums}, L. {Epithelia}. [NL., fr. Gr. 'epi` upon + ? nipple.] (Anat.) The superficial layer of cells lining the alimentary canal and all its appendages, all glands and their ducts, blood vessels and lymphatics, serous cavities, etc. It often includes the epidermis (i. e., keratin-producing epithelial cells), and it is sometimes restricted to the alimentary canal, the glands and their appendages, -- the term endothelium being applied to the lining membrane of the blood vessels, lymphatics, and serous cavities. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • epithelia — ep·i·the·li·a (ĕp ə thēʹlē ə) n. A plural of epithelium. * * * …   Universalium

  • epithelia — Plural of epithelium. * * * ep·i·the·lia (ep″ĭ theґle ə) plural of epithelium …   Medical dictionary

  • epithelia — ep·i·the·li·um || ‚epɪ θiːljÉ™m n. layer of cells lining bodily organs and surfaces (Biology) …   English contemporary dictionary

  • Columnar epithelia — are epithelial cells whose heights are at least four times their width. Columnar epithelia are divided into simple (or unilayered), and stratified (or multi layered). * Simple columnar epithelia * Stratified columnar epithelia * Pseudostratified… …   Wikipedia

  • Stratified columnar epithelia — have several layers, with columnar cells as the outermost of these. Stratified columnar epithelia are found in the uterus and parts of the anus and eye and the male urethra and vas deferens and in parts of the pharynx. The cells function in… …   Wikipedia

  • Cuboidal epithelia — are epithelial cells having a cube like shape; that is, their width is approximately equal to their height. They may exist in single layers (simple cuboidal epithelium) or multiple layers (stratified cuboidal epithelium) depending on their… …   Wikipedia

  • stratified squamous epithelia — type of epithelial tissue made from squamous cells arranged in layers …   English contemporary dictionary

  • Epithelium — This article is about the epithelium as it relates to animal anatomy. For the fungal structure of the same name, see Pileipellis. Epithelium Code TH H2. Epithelium is one of the four basic types of animal tissue, along with… …   Wikipedia

  • Cytokeratin — Keratin intermediate filaments in epithelial cells (red stain). Cytokeratins are proteins of keratin containing intermediate filaments found in the intracytoplasmic cytoskeleton of epithelial tissue. The term cytokeratin began to be used in the… …   Wikipedia

  • Cellule épithéliale — Épithélium Types d épythélia Les épithélia sont des tissus constitués de cellules étroitement juxtaposées, sans interposition de fibre ou de substance fondamentale (ce qui les distingue des tissus conjonctifs). Les cellules sont associées les… …   Wikipédia en Français

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