The arm extends from the shoulder to the wrist, including the upper arm and forearm. Different muscles may work together in intricate ways to help the arm, wrists, fingers, and hands function. Knowing ...

The opponens pollicis muscle is a triangular-shaped muscle in the hand. It is found on and below the thumb. This muscle rotates and flexes the thumb, which enables cupping of the palm. It is one of ...

This report presents results of a comparison perineal muscle function between antepartum and postpartum measurements in a cohort of women with different perineal conditions after childbirth. Data were ...