The hamstrings are made up of three major muscles. Together they're responsible for hip and knee movements for walking and more. This article breaks it down, including videos and visuals.

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 is the anatomy and function of the quadriceps muscles? Read on to learn more about this muscle group, including common injuries and strengthening exercises.

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.