The document provides an overview of the muscular system by listing different muscle groups in the body including facial muscles, chest muscles, arm muscles, and leg muscles. It also mentions muscle fibers and muscles in the esophagus, gut, and throat.

1. Muscular
System
Anterior = front
Posterior = back

4. Facial Muscles

7. Muscle Fibers

11. Muscles in our esophagus, gut, and throat

13. Chest muscles

14. Arm Muscles

16. Leg Muscles