A small pocket, vesicle, cave, or recess communicating with the outside of a cell and extending inward, indenting the cytoplasm and the cell membrane. Such caveolae may be pinched off to form free vesicles within the cytoplasm. They are considered to be sites of uptake of materials into the cell, expulsion of materials from the cell, or sites of ad...
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http://www.encyclo.co.uk/local/20973
(ka-ve-o´lә) pl. caveo´lae one of the minute pits or incuppings of the cell membrane formed during pinocytosis.
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(= caveolae (plural)) Small invagination of the plasma membrane characteristic of many mammalian cells and associated with endocytosis. The membrane of caveolae contain integral membrane proteins, caveolins (21-24 kD) that interact with heterotrimeric G-proteins. Caveolar membranes are enriched in cholesterol and sphingolipids and may be the efflux route for newly synthesized lipids. Clathrin is not associated with caveolae.
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Type: Term Pronunciation: kav′ē-ō′lă, -lē Definitions: 1. A small pocket, vesicle, cave, or recess communicating with the outside of a cell and extending inward, indenting the cytoplasm and the cell membrane. Such caveolae may be pinched off to form free vesicles within the cytoplasm. They are considered to be sites ...
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http://www.medilexicon.com/medicaldictionary.php?t=15210
Caveola: An tiny pit, grotto, depression, incupping in the surface of a cell. The name 'caveola' means little cave. The plural is caveolae. Caveolae normally function to facilitate the uptake of fluid by the cell. In the process of pinocytosis, the caveolae close and pinch off to form pinosomes, little fluid-filled bubbles within the cell. Bacteria...
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caveola (s), caveolae (pl) A micropinocytotic vesicle.
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