Body Systems.

3. This part of your nervous system includes the brain and the spinal cord.
5. The job of this system is to break the food down into substances the organs and cells can use in our bodies.
6. The job of this system is to bring the oxygen into your body and remove the carbon dioxide from your body.
9. This system provides the shape and form of our bodies. It also protects out internal organs and allows us to move our bodies.
10. This part of your nervous system is basically the nerves together that carries messages to and from the central nervous system. It sends information to the brain and carries out orders from the brain.
11. This system is where your brain sends and receives information about what is happening in the body and around it.
12. This muscle is found in the walls of many organs such as the bladder, womb, and intestines, where it contracts to propel food along.

1. This system mostly involves your blood, heart, and blood vessels.
2. This organ is about the size of your clenched fist. This organ pumps blood to all the parts of the body.
4. There are three types of this that allow you to gain muscle and muscle memory.
7. This muscle is covered by layers of skeletal muscle. Each muscle attached to two or more bones so that when the muscles contract and expand, they create movement.
8. This muscle contracts throughout life to pump blood from the heart to the lungs and around the body.