Muscle contractions occur when there is a decreased:
A) distance between Z lines.
B) A band length.
C) Z line length.
D) H zone distance.

Name: Muscle contractions occur when there is a decreased: A) distance between Z lines. B) A band length. C) Z line length. D) H zone distance.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

During muscle contraction, the sarcomere shortens, which decreases the distance between Z lines. The A band length remains constant, while the H zone and I band shorten.

Muscle Contractions Occur When There Is a Decreased