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Plaque d'Attache et Corps Denses


ND11HB
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  • Solution

Salut, 

Les corps denses sont des groupements d'alpha actine au niveau de la membrane de la cellule du muscle lisse (PAS DE SARCOMERE) qui permettent l'ancrage des filaments fins d'actine, seulement dans la cellule donc. 

Les plaques d'attache elles permettent un couplage MECANIQUE des léiomyocytes entre eux. A ne pas confondre avec les jonctions communicantes qui permettent un couplage ELECTRIQUE

J'espère avoir répondu à ta question ;)

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