Human Body Systems

3. The system that includes a pathway of nerves that communicate with your brain
6. The muscles that allow you to move intentionally
7. The muscle that sits below your lungs and gets smaller when you breathe in and gets larger when you breathe out
9. Substances that are poisonous to your body
10. The point where two bones meet
13. Tubes that direct the blood that has no more oxygen back to your heart
14. The system of tissues and organs that allow your body to move
15. The very bottom of your brain responsible for keeping your lungs breathing and your heart beating
16. The system of tissues and organs that allow your body to take in oxygen from the air

1. The system of tissues and organs that allow your blood to flow throughout your body
2. The muscles that make up your heart
4. The system of tissues and organs that help your body get rid of waste and toxins
5. The system, or framework, of bones that gives your body support
6. The muscles that do work inside your body such as pushing food along
8. The tube of muscles that connects your mouth to your stomach
11. Tubes that direct blood that’s full of oxygen out into your body
12. The system of tissues and organs that allow your body to take in food, absorb nutrients, and get rid of waste