NSCA CSCS Practice Exam Version 2 (Latest 2023/ 2024 Update) Questions and Verified Answers | 100% Correct| Grade A

NSCA CSCS Practice Exam Version 2 (Latest 2023/ 2024 Update) Questions and Verified Answers | 100% Correct| Grade A Q: Where are the contractile proteins in striated muscle located? Answer: The sarcomere Q: What does the sarcoplasmic reticulum store that is significant for muscular contraction? Answer: Calcium ions Q: What protein is significant for initiating muscular contraction? Answer: Troponin Q: What is the all or nothing principle of muscular contraction? Answer: The all-or-nothing principle specifically outlines that if an action potential is released onto the sarcolemma of a muscle, then a contraction will take place, and if there is no action potential present, then the muscle will not contract and remain relaxed. Q: What muscle fiber type has the greatest capacity for force production and hypertrophy? Answer: Type IIb (2b) Q: What anatomical structure is considered to be the "pacemaker" of the heart? Answer: The sinoatrial node Q: Fast twitch muscle fibers are type ___ fibers Answer: IIa & IIb (2a & 2b) Q: Tendons connect ___ to ___. Answer: Muscle to bone Q: Bradycardia is a slow ___. Answer: Heart rate Q: Proximal muscles are ___ to the ___. Answer: Closer, trunk Q: The source of energy for muscle movement is called. Answer: ATP Q: Which side of the heart pumps blood through the lungs? Answer: Right Q: ___ is a protein in red blood cells that carries oxygen throughout the body. Answer: Hemoglobin Q: Which muscle fiber type is the most beneficial for a marathon runner? Answer: Type I Q: Which of the following substances acts at the neuromuscular junction to excite the muscle fibers of a motor unit? Answer: Acetylcholine Q: From Which of the following is the hearts electrical impulse?