In order for high force crossbridges to form in contracting skeletal muscle, calcium must

A) bind to troponin which moves the tropomyosin.
B) bind to tropomyosin which moves the troponin.
C) bind to calmodulin to phosphorylate the myosin.
D) phosphorylate the troponin to move the tropomyosin.
E) phosphorylate the tropomyosin which moves it.


A) bind to troponin which moves the tropomyosin.

Anatomy & Physiology

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