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ACSM Personal Trainer

Category - Initial Client Consultation and Assessment

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What structure covers the actin bridging site during rest and is attached to troponin?

Myosin
Tropomyosin
Myofibrils
Myofilaments

Explanation

Answer: B - Tropomyosin covers the actin bridging site during rest and is attached to troponin. Together, they regulate the bridging action of actin and myosin for muscle contraction and relaxation.

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