The muscular system is composed of over 600 muscles. These muscles are categorized into three main types: skeletal, smooth, and cardiac muscles.
- Skeletal Muscles: These are the muscles that are attached to bones and are responsible for voluntary movements. There are approximately 640 skeletal muscles in the human body.
- Smooth Muscles: These muscles are found in the walls of internal organs such as the stomach, intestines, and blood vessels. They are responsible for involuntary movements.
- Cardiac Muscles: These muscles are found only in the heart and are responsible for pumping blood throughout the body.
Each type of muscle has a specific function and plays a crucial role in the overall functioning of the body. Together, these muscles make up the muscular system, which is essential for movement, stability, and maintaining posture.