caveola (pl. caveolae)A small static flask-shaped depression in the plasma membrane of a cell that is lined by transmembrane proteins called caveolins and contains receptors for various extracellular signalling molecules. There is a two-way traffic in and out of the cell via caveolae, and caveolin-containing vesicles are transported from within the cell to the caveolar membrane along microtubules. Contrary to earlier reports, caveolae are now thought not to be involved in endocytosis.
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Cell , Cell The cell is the basic unit of a living organism. In multicellular organisms (organisms with more than one cell), a collection of cells that work… Plasma Membrane , Plasma membranes envelop all plant and animal cells and all single-celled eukaryotes and prokaryotes , separating them from their environments. Struc… Adherens Junction , adherens junction A cell junction that is commonly observed in epithelial (see EPITHELIUM) cells (e.g. those lining the intestine and those in cardia… Schwann Cell , Schwann cell (neurilemma cell) A cell that forms the myelin sheath of a nerve fibre. Each cell is responsible for a single length of the fibre (calle… plasmodesmata , plasmodesmata (sing. plasmodesma) Fine cytoplasmic strands that connect the protoplasts of adjacent plant cells by passing through their cell walls.… Endocytosis , The ability to internalize material from outside the cell is important for several cellular processes including the ingestion of essential nutrients,…
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