Muscle Contraction Diagram
Anatomy & Physiology Fundamentals for Nursing
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Muscular System
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Muscle Physiology
Q. What is the role of calcium in skeletal muscle contraction?
a
It breaks down ATP for energy
b
It binds to actin and initiates the power stroke
c
It binds to troponin and shifts tropomyosin away from actin
d
It triggers the release of acetylcholine from the nerve terminal
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