NCCPT Certified Personal Trainer Practice Questions - NCCPT Certified Personal Trainer (NCCPT-CPT) Exam

According to the sliding filament theory, what directly triggers the exposure of myosin-binding sites on actin?

Release of acetylcholine at the motor end plate Binding of calcium to troponin Hydrolysis of ATP by myosin Depolarization of the sarcolemma

Correct Answer:

Binding of calcium to troponin

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