During skeletal muscle contractions, which part of the muscle shortens?

Name: During skeletal muscle contractions, which part of the muscle shortens?
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Quizplus · Accepted Answer

The sarcomere is the basic unit of a muscle's cross-striated myofibril and is the part that shortens during muscle contraction. This shortening is due to the sliding filament theory, where actin and myosin filaments slide past each other without changing their length, causing the sarcomere to shorten.

During Skeletal Muscle Contractions, Which Part of the Muscle Shortens