The Event(s) That Induce Contraction of a Muscle Fiber Are

question 28

Multiple Choice

The event(s) that induce contraction of a muscle fiber are the

• A) entry of calcium ions into the cytoplasm of the muscle fiber.
• B) entry of chloride ions into the cytoplasm of the muscle fiber.
• C) release of acetylcholine onto the postsynaptic membrane.
• D) separation of the actin and myosin filaments.
• E) movement of potassium ions into the muscle fiber.

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