Systems of the Human Body

3. The mouth, stomach and intestines. This system is responsible for breaking down the food we eat into particles that are small enough for the cells to take in.
6. The organs responsible for eliminating waste products from the human body, including the kidneys, bladder and even the skin.
8. The 600 parts that give your body the ability to move and bend. Some are attached to bones and can be moved voluntarily while others, like the heart, contract and relax.
10. Body parts that perform a given function, like the heart, lungs, and brain
11. Special chemicals made by the endocrine system to help the body to grow and develop
13. The microscopic, living building blocks of which every living thing is comprised. The human body is composed of over 75 trillion

1. eliminating waste and maintaining the health of every cell.
2. The blood, blood vessels and heart. This system is responsible for transporting
4. All of the cells and organs in the body that protect against disease-causing germs
5. The 206 parts of the human body and the tissues that connect them. This system gives your body its structure and provides protection for the inner organs
7. The organs that are responsible for controlling the entire body (the brain, nerves, spinal cord) and the sense organs that help us learn what is going on around us (ears, eyes, nose, tongue, and skin)
9. The organs, glands, and other structures that allow an organism to produce offspring
12. The organs that make and send special chemical messengers called hormones throughout the body to help the body to grow, to burn sugar for energy, to digest foods, to recover from injury and to help the body perform well under pressure.