What is attached to a bone that is less movable and more to the center axis (closer to mainline of the body)?
insertion
The structure that is attached to a bone that is less movable and more to the center axis (closer to the mainline of the body) is called an origin. It is the point of skeletal muscle attachment that remains relatively fixed during muscular contraction. The origin of a muscle tends to be located closer to the center of the body and is attached to a bone that is less movable. The opposite end of the muscle, known as the insertion, is attached to a bone that is more movable and tends to be located farther from the center of the body. During muscular contraction, the insertion moves towards the origin, resulting in movement at a joint.
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