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NSCA-CSCS Exam 2023 with 100% correct answers
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Which of the following substances regulates muscle actions? a. Potassium b. Calcium c. Troponin d. Tropomyosin - correct answerb. Calcium Which of the following substances acts at the neuromuscular junction to excite the muscle fibers of a motor unit? a. Acetylcholine (ACH) b. ATP c. ...
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