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5 Cards in this Set
- Front
- Back
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What is a tight junction? |
Strands of transmembrane proteins that fuse adjacent cells together. Water tight - eg. Stomach, bladder what is an |
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What is an adherens junction? |
An adhesion belt made of plaque that surrounds the cell. Transmembrane glycoproteins (cadherens) join the cells. Good for keeping epithelial surfaces from slipping out of position. |
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What is a desmosome? |
Similar to a spot weld, it incorporates plaque, cadherins and the cytoskeleton. Keeps cells from being pulled apart and contributes to tissue stability. Neighboring cell. |
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What is a hemideamosone? |
Half a desmosome- anchors cells to the basement membrane. |
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What is a gap junction? |
Membrane proteins form a tunnel between cells (connexons)- small substances like ions can pass through. Allows cells to communicate with each other, share nutrients, transfer chemical/electrical signals. |
