Across
- 3. large membranous tube reinforced by rings of cartilage
- 5. distribute oxygen-rich blood to your body
- 7. The activity,role, value and purpose
- 10. rich blood after the blood gets oxygen
- 11. the network of organs and tissues that help you breath
- 12. where the lungs exchange oxygen and carbon dioxide
- 14. blood vessels located throughout the body
- 15. contracts and flattens and the chest cavity enlarges
Down
- 1. made up of blood vessels
- 2. Blood cells protect your body from infection
- 4. Rate the number of times the heart beats
- 6. the process of gas exchange called respiration
- 8. transport blood, nutrients and oxygen
- 9. blood cells carry oxygen from the lungs to all parts of the body
- 10. poor blood returns from the body to the heart through the superior vena cava
- 13. a fist-sized organ that pumps blood throughout your body