cell junctions

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4 Terms

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occluding junctions

sealing

  • tight junctions (vertebrates only)

2
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anchoring / adhering junctions

stability

  • actin filament attachment sites

    • cell-cell junctions (adherins junctions) — adhere

    • cell-matrix junctions (focal adhesions) — anchor

  • intermediate filament attachment sites

    • cell-cell junctions (desmosomes) —adhere

    • cell-matrix junctions (hemidesmosomes) —anchor

3
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communicating junctions

communicating

  • gap junctions

  • nanotube junctions

  • plasmodesmata (plants only)

all of these are channel forming

4
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THE junctional complex of intestinal epithelial cells

  1. tight junction (seal)

  2. adherens junction (stability)

  3. desmosome (stability)

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