Exam (elaborations)
NSCA-CSCS Exam: End of chapter questions & Answers(Rated A+)
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Which of the following substances regulates muscle actions? a. Potassium b. Calcium c. Troponin d. Tropomyosin - ANSWER b. 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. Creatin...
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