What is the attachment of a muscle to a more movable part of the skeleton called?

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The attachment of a muscle to a more movable part of the skeleton is called the insertion. The origin, on the other hand, is the attachment of a muscle to a less movable part of the skeleton. Stenosis refers to the narrowing of a body passage or opening, rotation refers to the movement of a bone around its own axis, and contracture is the permanent tightening of a muscle or joint.

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