This is the biceps The biceps work across three joints.The most important of these functions is to supinate the forearm and flex the elbow.the biceps also help you in other important purposes like open a pickle jar.

This is the pectoralis muscle also known as the pecs It makes up the bulk of the chest muscles in the male and lies under the breasts in the female. Underneath the pectoralis major is the pectoralis minor, a thin, triangular muscle it helps In sports as well as bodybuilding.

Did you know?

That the strongest muscle in the body is the tongue,and that is takes 200 muscles to take a step!