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.

Muscles that work like this are called antagonistic pairs. In an antagonistic muscle pair as one muscle contracts the other muscle relaxes or lengthens. The muscle that is contracting is called ...

Have you heard of agonist and antagonist muscle pairings before? This relationship between your muscles refers to opposing muscle groups, working in tandem, and their function to control and ...