MEDICAL PHYSIOLOGY

Detailed explanation-1: -The end of the muscle that attaches to the bone being pulled is called the muscle’s insertion and the end of the muscle attached to a fixed, or stabilized, bone is called the origin. The muscle primarily responsible for a movement is called the prime mover, and muscles that assist in this action are called synergists.

Detailed explanation-2: -Muscle Insertion Definition A muscle has two ends that each attach to bone: the muscle’s origin and the muscle’s insertion. At both of these points, tendons attach the muscle to bone. Muscle insertion refers to a muscle’s distal attachment-the end of the muscle furthest away from the torso.

Detailed explanation-3: -The insertion of the muscle is the muscle end that attaches to the moving structure. The belly of the muscle is that part of the muscle between the origin and insertion.

Detailed explanation-4: -Skeletal Muscle Attachments: The point of attachment of a muscle that remains relatively stationary when the muscle contracts is the muscle’s origin. The point of attachment that moves when the muscle contracts is the muscle’s insertion.