The shoulder muscles play a large role in how we perform tasks and activities in daily life. We'll discuss the function and anatomy.

The rotator cuff is made up of four muscles that hold your shoulder in place. It helps you perform all the movements of your upper arm and shoulder.

Find out what you need to know about thigh muscles, and discover their anatomy and common injuries.

What does the lower leg consist of? Read on to learn more about the lower leg and lower extremity, including the bones, muscles, tendons, and nerves of the lower leg.