A 22-year-old right-hand dominant woman presented to the ED with right arm and forearm pain after being struck by a car when she was on the sideline at an auto race. The car went off track, crashing ...

Posterior shoulder dislocation occurs when the top of the upper arm bone, known as the humerus, moves backward out of its socket. This causes pain, muscle spasms, and a limited range of motion. The ...

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 ...