The elbow is a complex hinge whose basic range of motion occurs in a single plane. Pronation and supination of the forearm result from motion of the radius on the capitellum and at the radioulnar ...

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 medial cutaneous nerve is located in the arm. It spreads through the middle of the arm, also known as the medial brachial area. It is also called the lesser internal cutaneous nerve in medical ...

The flexor digitorum superficialis is an extrinsic muscle that allows the four medial fingers of the hand to flex. These fingers include the index, middle, ring, and pinkie fingers. The term extrinsic ...