Body Systems

3. In adults, this organ is a tube that is about 22 feet long! It sits coiled up under your stomach and breaks down your food mixture even more so your body can absorb all the nutrients.
4. These are produced by the endocrine system to send chemical messages throughout the body
6. This organ is part of the nervous system and controls all functions of the body. It is made up of more than 100 billion nerves!
7. This organ holds your urine until it is time to go to the bathroom.
8. This organ cleans your blood, produces bile, and stores energy. This is the largest solid organ in your body. It will be about the size of a football by the time you are a grown up!
9. Food lands here after you eat. It breaks down food into a liquid mixture and empties it into the small intestine.
12. In adults, this organ is a tube that is about 5 feet long! It absorbs water and vitamins and forms feces.

1. This organ comes in a pair of two. They remove all the waste in your blood and pass them out of the body as urine. Fun fact, you can live with only one of these!
2. blood cells in charge of fighting infections for our immune system
5. sends messages from the brain to the rest of the body
8. You have two of these. This organ helps you breathe. Its main job is to move fresh air into your body while removing waste gases.
10. This organ sends blood around your body. It provides your body with the oxygen and nutrients it needs. If you are a kid, this organ is about the same size as your fist.
11. This organ is a long, flat gland in your belly. It produces enzymes that are important for digesting the food you eat.