Exam (elaborations)
CSCS PRACTICE EXAM
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1. To which of the following structures do the cross-bridges attach during muscle action? a. actin b. myosin c. M-bridge d. sarcolemma - Answer- actin 2. Which of the following substances regulates muscle actions? a. potassium b. calcium c. troponin d. tropomyosin - Answer- c...
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