Which of the Following Describes the Role of Acetylcholine in Muscle

question 69

Multiple Choice

Which of the following describes the role of acetylcholine in muscle contraction?

• A)Acetylcholine binds to the membrane receptor in the sarcolemma and facilitates opening of the sodium channels.
• B)Acetylcholine binds to the sarcolemma to open calcium channels.
• C)Acetylcholine binds to the membrane receptor and inhibits the stimulation and contraction of muscle fiber.
• D)Binding of acetylcholine results in the repolarization of the sarcolemma.

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