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Cricks Epithelial

Cricks Epithelial Tiss Vocab

QuestionAnswer
What is an epithelial cell? A body cell that is found covering the body or lining a hollow organ.
What are the two forms of epithelium? 1) covering and lining 2) glandular
Where is extra-cellular material found? outside of cells
What is a cell junction? A place where 2 adjacent cells come into contact
What is an apical surface? the surface of a cell that faces open space (either a hollow area of an organ, or the outside of the body.)
What is a lateral surface? the surface of a cell that faces cells that are next to each other
What is a basal surface? the surface of a cell that faces the basement membrane.
What is basement membrane? extra cellular material that connects the epithelial cells to the underlying connective tissue.
What does avascular mean? without arteries or veins
How do epithelial cells get blood supply and relief of waste? diffusion with the underlying connective tissue
How are squamous cells shaped? thin, flat, like tiles
What is the function of a squamous cell? let matter diffuse through them (both directions)
How are cuboidal cells shaped? as tall as they are wide
What is the function of a cubiodal cell? Secretion and or absorption
What is a microvilli? a finger-like extension of the cell that specializes in absorbing material. the microvilli increases the surface area of the cell
How are columnar cells shaped? taller than they are wide
What is the function of a columnar cell? Protect underlying cells, also potentially absorption and or secretion
What is a cilia? A fingerlike extension of a cell. The cilia all move in unison to make substances move across the surface of the epithelium
What is the shape of a transitional cell? their shape changes from cuboidal to squamous as the tissue is stretched
What is the function of a transitional cell? to allow the epithelium to stretch as needed
What is a goblet cell? an epithelial cell that is specialized to secrete substances
What is an endocrine gland? An epithelial cell that is specialized to secrete substances (hormones) into the bloodstream.
What is an exocrine gland? An epithelial cell that is specialized to secrete substances into ducts that lead out of the body or into hollow organs.
Created by: russcrick
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