Across
- 1. a muscle that pushes food down to your stomach
- 5. carry air to your lungs
- 7. a flap of tissue that closes food of from the windpipe
- 9. also known as a windpipe
- 10. makes a chemical substance called bile
- 11. a filter to clean the air you breath in
Down
- 2. small air sacs responsible for gas exchange in the blood stream
- 3. smaller branches of bronchi which carry air into the alveoli
- 4. an artery that carries blood away from your heart to your body
- 6. recieve then push blood to the ventricles
- 8. also known as the throat, it carries air, food and fluid down from the nose and mouth