BIO230H1 Chapter Notes -Adherens Junction, Intermediate Filament, Cell Adhesion Molecule

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13 Mar 2014
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BIO230H1 Full Course Notes
BIO230H1 Full Course Notes
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Cell junctions, cell adhesion, and the extracellular matrix: most fundamental interactions between cells are those that hold the cells together. This can occur through, cell-cell junctions, or even by extracellular materials that they excrete. Adhesions can control the shape of the cell. 2 ways in which stresses can be transmitted across a multicellular structure. The other strategy depends on the strength of the cytoskeleton inside the cells and on cell-cell adhesions. In plants the strength is due to the ecm. In animals, both architectural strategies are used: connective tissue: any supporting tissue that lies between other tissues and consists of cells embedded in a relatively large amount of extracellular matrix. The matrix, rather than cells, that bears most of the stress: animal tissues tend to fall into 2 categories: connective tissue and epithelial tissue, epithelial tissue: includes the lining of the gut or the epithermal covering the skin. Epithelial cells connected to the basal lamina by anchors.