Which of the following statements regarding skeletal muscle contraction is true?

A. During a lengthening contraction, the tension exerted by the muscle exceeds the load on the muscle.
B. In every isotonic muscle contraction, the length of the muscle remains constant.
C. During every muscle contraction, muscle fibers change length.
D. During every muscle contraction, tension is developed in the muscle.
E. Cross-bridges cycle faster during isometric contractions than during isotonic contractions.


D

Anatomy & Physiology

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