Acetylcholine

question 51

Multiple Choice

Acetylcholine

• A) binds to the myosin head, enabling it to form cross-bridges with actin.
• B) binds to the sarcolemma and initiates an impulse in the muscle fiber.
• C) breaks down the neurotransmitter that activates muscle fibers.
• D) is released from the sarcoplasmic reticulum and binds to actin.

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