MICROANATOMY

Detailed explanation-1: -Antagonistic Muscle is a muscle that opposes the action of another. For example, when the triceps oppose the contraction of the flexing biceps by relaxing, the triceps would be regarded as the antagonistic muscle to the biceps whereas the biceps, the agonist muscle.

Detailed explanation-2: -Answer and Explanation: All skeletal muscles can only pull attached bones; therefore, all muscles must be part of an antagonistic pair. Muscle contraction causes the attached bone to be pulled in its direction. Contraction, however, does not push bones in the opposite direction.

Detailed explanation-3: -Agonist vs Antagonist Muscles The agonist muscle initiates the movement of the body during contraction by pulling on the bones to cause flexion or extension. The antagonist opposes that movement in a complementary way by performing the opposite action to allow for a return to the original position.

Detailed explanation-4: -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.