Muscular System
Every time you move, you use your muscles. The muscular system is what allows movement of your body, maintains posture, and helps blood flow throughout your body. This organ system includes all the muscles in the body: skeletal, smooth, and cardiac.
These muscles are attached to the bones of the skeletal system. Their muscles made up about half of the human weight.
There is about 700 named muscles.
Explore Different Parts of Muscular System
The muscular system works with the skeletal system to provide movement but also helps blood circulation and other benefits. Explore our resources to learn about the different muscles of the body.
*This site content is provided for informational purposes only and does not intend to substitute professional medical advice, diagnosis, or treatment. If you have medical questions and/or concerns, please contact a medical professional.