Question

1 multiple choice 1 point the insertion of a muscle is best described as the: middle of the muscle belly attachment site that moves during contraction area where the nerve enters the muscle attachment site that never moves

Explanation:

To determine the correct description of a muscle's insertion, we analyze each option:

• "Middle of the muscle belly" is incorrect as the insertion is an attachment site, not the middle of the muscle belly.
• "Attachment site that moves during contraction" is correct. A muscle's insertion is the attachment point that moves when the muscle contracts (the origin is the relatively fixed attachment site).
• "Area where the nerve enters the muscle" is incorrect; this describes the motor end plate or the site of nerve - muscle innervation, not the insertion.
• "Attachment site that never moves" is incorrect; the insertion moves, while the origin is the relatively fixed attachment site.

Answer:

B. Attachment site that moves during contraction