Multiple Choice
Which of the following is one of the steps that ends a contraction?
A) Sarcoplasmic reticulum absorbs sodium ions.
B) Acetylcholine binds to receptors on the sarcolemma.
C) Calcium ions bind to troponin.
D) Acetylcholine is broken down by acetylcholinesterase.
E) An action potential spreads across the entire surface of the muscle fiber.
Correct Answer:
Verified
Correct Answer:
Verified
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