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NSCA CSCS Exams (Latest 2023/ 2024 Updates STUDY BUNDLE WITH COMPLETE SOLUTIONS) Questions and Verified Answers | 100% Correct| Grade A
Which of the following substances regulates muscle actions? 
potassium 
calcium 
troponin 
tropomyosin	calcium 
 
Which of the following substances acts at the NMJ to excite the muscle fibers of a motor unit? 
 
acetylcholine 
ATP 
creatine phosphate 
serotonin	acetylcholine 
 
When throwing a baseball, an athlete's arm is rapidly stretched just before throwing the ball. Which of the following structures detects and responds to that stretch by reflexively increasing muscle activity? 
 
golgi te...
- Exam (elaborations)
- • 26 pages •
Which of the following substances regulates muscle actions? 
potassium 
calcium 
troponin 
tropomyosin	calcium 
 
Which of the following substances acts at the NMJ to excite the muscle fibers of a motor unit? 
 
acetylcholine 
ATP 
creatine phosphate 
serotonin	acetylcholine 
 
When throwing a baseball, an athlete's arm is rapidly stretched just before throwing the ball. Which of the following structures detects and responds to that stretch by reflexively increasing muscle activity? 
 
golgi te...