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ACSM CPT Exam Review Questions with Correct Answers Document Content and Description Below ACSM CPT Exam Review Questions with Correct Answers What is the function of the tricuspid valve? A. It acts as a pacemaker. B. To pump blood through the heart. C. Prevents backflow of blood to th e left atrium. D. Prevents backflow of blood to the right atrium. - Answer: D What is the fundamental unit of muscle contraction? A. Myofibril B. Sarcomere C. Myosin D. Sarcolemma - Answer: B Which chamber of th...