Added: 3 years ago
From: mxplk
Views: 11,477
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  • how is this stupid uploader?

  • 1. Nerve cells release Ach to the active sites on the cell membrane from the synaptic cleft. Next, Ca+2 binds the the troponin which causes the tropomysin to open allowing for the head of the myosin to enter which contracts the muscle.

    2. Cell membrane of muscle fiber.

    3.The Actin and myosin are located in clusters inside the myofibrils and they are individualy the myofilaments

    4. Myofibril are protein filaments or myofilaments and microfilaments. A muscle fiber Muscle fiberaremyofiber

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