Medically reviewed by Amy Kwan, PT Your latissimus dorsi (your "lats") is a broad, flat, triangle-shaped muscle that spans ...

Outward arm action in a jumping jack Rotator cuffs A group of stabilising muscles of the shoulder which helps to prevent dislocation and allows the shoulder to rotate the humerus around its own ...

A ball and socket joint is made up of a round end of one bone ... Muscles which move the knee are quadriceps and hamstrings. Ball and socket joint. Articulating bones are humerus and scapula ...