In a relaxed skeletal muscle ________.

Question

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In a relaxed skeletal muscle, the Z lines are farthest apart because the thin filaments are not being pulled towards the center of the sarcomere by cross-bridge cycling between the thick and thin filaments. The sarcomeres are actually at their longest length in a relaxed muscle, not their shortest (B). Calcium release from the sarcoplasmic reticulum occurs during muscle contraction, not relaxation (C). In a contracted muscle, the thick and thin filaments overlap to the greatest extent possible, not in a relaxed muscle (A).

In a Relaxed Skeletal Muscle ________