What is the middle portion of a muscle called?

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Multiple Choice

What is the middle portion of a muscle called?

Explanation:
The middle portion of a muscle is called the belly, the fleshy central mass between the two attachment points. It contains most of the muscle fibers and is where contraction occurs to generate movement. The ends are the origin, the attachment that stays relatively fixed, and the insertion, the attachment that moves when the muscle contracts. The term base isn’t used to describe muscle anatomy.

The middle portion of a muscle is called the belly, the fleshy central mass between the two attachment points. It contains most of the muscle fibers and is where contraction occurs to generate movement. The ends are the origin, the attachment that stays relatively fixed, and the insertion, the attachment that moves when the muscle contracts. The term base isn’t used to describe muscle anatomy.

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