Muscular System

4. These muscles connect to the skeleton to help a person move.
6. The arm has what type of muscles?
8. Nearly all movement in the body is the result of muscle?
12. What word means to move without a person having to think.
13. Flexor and extensor muscles work as a?
14. Smooth muscles expand and contract to help the _______ take in air and move blood through blood vessels.
15. The bladder is what type of muscle?

1. The muscular system is composed of specialized cells called muscle?
2. Muscle fibers are arranged in?
3. Muscles help _______ the food a person consumes.
4. These muscles and are located in hollow organs.
5. Skeletal muscles are __________, meaning the brain sends a message along the nerves in the body to make a muscle move.
7. What attaches skeletal muscles to bone?
9. The heart is what type of involuntary muscle?
10. What gives the cells the energy they need to work?
11. There are around 600 _____ in the human body.