Junction Types - Tight and Adherens Junctions

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HWC

By: HWC

Date Uploaded: 09/15/2019

Tags: junctions  

Many tissues contain in tercellular junctions between cells. 1. Tight junction 2. Adherens junction 3. Desmosome 4. Hemidesrnosome 5. Gap junction 1. Tight junction • Web-like strips of proteins fuse together adjacent plasma membranes. • Tight junctions prevent the transport of the contents of organs such as the intestines, urinary bladder, and stomach into the blood or surrounding tissues. 2. Adherens junction • Anchored to a dense plaque of proteins inside the cell are transmembrane proteins that connect adjacent cells together. • Additionally, microfilaments extend from the plaque into the cytosol. • Adhesion belts help resist separation of epithelial tissues.

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