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 shoulder muscles are responsible for maintaining the widest range of motion of any joint in your body. This flexibility is also what makes the shoulder prone to instability and injury. Muscles, ...

These muscles are commonly associated with lower back pain. Below the end of the spine near the pelvic bones are the deep gluteal muscles. These are all associated with the thigh, whether rotating it, ...