The more movable end of a muscle is itsA. insertion.B. source.C. origin.D. fulcrum.
A
The more movable end of a muscle is called its “insertion”. This is the end of the muscle that attaches to the bone that moves when the muscle contracts. The other end of the muscle is called the “origin”, which is attached to the immovable bone or structure. Therefore, during a muscle contraction, the insertion end moves towards the origin end, which remains fixed.
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