Medically reviewed by Stuart Hershman, MDFact checked by Maddy SimpsonThe shoulder joint is the articulation between the thorax and the arm. This joint is one of the most complex and mobile joints of ...

Medically reviewed by Renee Nilan, MD The brachioradialis is a large forearm muscle that helps bend the elbow, especially when the hand is in a neutral position, like holding a cup. Controlled by the ...