What are the five major functions of the muscle system?

1. Movement: Muscles allow for movement of the body through contractions and relaxations, such as walking, running, jumping, and lifting objects.

2. Stability and Posture: Muscles work together to provide stability and support to the skeletal system, helping to maintain proper posture and prevent injury.

3. Heat Generation: Muscles generate heat during contraction, which helps to maintain body temperature and prevent hypothermia. This is especially important during physical activity or in cold environments.

4. Circulation: Muscles assist in the circulation of blood throughout the body by helping to pump blood back to the heart and lungs. This is particularly important for maintaining proper blood flow and oxygen delivery to tissues and organs.

5. Protection: Muscles provide protection to internal organs and structures, such as the rib cage protecting the heart and lungs. Strong muscles can also help prevent injuries by providing cushioning and support to vulnerable areas of the body.