MEDICAL PHYSIOLOGY

Detailed explanation-1: -The muscle primarily responsible for a movement is called the prime mover, and muscles that assist in this action are called synergists. A synergist that makes the insertion site more stable is called a fixator. Meanwhile, a muscle with the opposite action of the prime mover is called an antagonist.

Detailed explanation-2: -A muscle with the opposite action of the prime mover is called an antagonist.

Detailed explanation-3: -antagonist: This type of muscle acts as opposing muscle to agonists, usually contracting as a means of returning the limb to its original resting position. agonist: These muscles are typically associates with the movement itself, and are sometimes referred to as prime movers. They contract while another muscle relaxes.

Detailed explanation-4: -In an antagonistic muscle pair, as one muscle contracts, the other muscle relaxes or lengthens. The muscle that is contracting is called the agonist and the muscle that is relaxing or lengthening is called the antagonist.

Detailed explanation-5: -The function of antagonistic muscle groups is to pull against each other in opposite directions in order to allow the movements of flexion and extension.