What happens when a muscle contracts?Group of answer choicesit lengthensit shortens
Question
What happens when a muscle contracts?Group of answer choicesit lengthensit shortens
Solution
When a muscle contracts, it shortens. This is due to the movement of muscle fibers sliding past each other, which pulls the ends of the muscle closer together. This process is powered by the chemical energy in ATP (adenosine triphosphate), which is produced by the body's metabolic processes. The contraction of a muscle can cause movement of specific body parts or help to maintain posture.
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During isometric contraction, muscles do not change length. Group of answer choicesTrueFalse
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