Block 5

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9 Terms

1
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Tight junctions

 Connections between cells that prevent substances from leaking between them.

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Adherens junctions

Connections that hold neighboring cells together using actin and cadherins.

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Desmosomes

 Strong connections that hold cells together and help them resist stretching.

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Hemidesmosomes

Connections that anchor cells to the extracellular matrix underneath them.

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Gap junctions

Connections that allow small molecules and electrical signals to pass directly between neighboring cells.

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Claudins

Proteins that help form tight junctions.

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Cadherins

Proteins that help neighboring cells stick together.

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Extracellular matrix

A network of proteins and other materials outside cells that provides support.

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Integrins

 Proteins that connect a cell's internal cytoskeleton to the extracellular matrix.