When calcium ion binds to troponin

A) Tropomyosin moves out of the groove between the actin molecules
B) Actin sites on the myosin are exposed
C) Actin heads will bind to myosin
D) Muscle relaxation occurs
E) Myosin shortens


A) Tropomyosin moves out of the groove between the actin molecules

Anatomy & Physiology

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