AP BIOLOGY

Detailed explanation-1: -Muscles work in pairs: as one muscle contracts, the other relaxes. Muscles that work together like this are called antagonistic pairs. This type of action enables the body to move with stability and control. Examples of antagonistic pairs are: ⚫ Biceps and triceps-at the elbow joint.

Detailed explanation-2: -Definition of Antagonistic Muscle As the name suggests, the word antagonistic means working opposite to the “agonist” or the “primary doer”.

Detailed explanation-3: -Antagonistic muscles are those muscles which produce movements in an antagonistic pair of muscles by opposing the movement of the agonistic muscle . i.e. when one contacts the other relaxes and vice versa. Example-biceps and triceps, quadriceps and hamstrings.

Detailed explanation-4: -Muscles work in ‘antagonistic muscle pairs’. One muscle of the pair contracts to move the body part, the other muscle in the pair then contracts to return the body part back to the original position.