Across
- 1. the smaller branches bronchi turn into
- 2. the two branches of the lungs
- 6. Is one of the two large chambers that collect and expell blood.
- 9. The system which blood goes to and fro.
- 12. the liquid blood floats in
- 14. tiny air sacks at the end of ronchioles
Down
- 1. vessels that oxynated blood flows in.
- 3. Main muscle for pumping blood
- 4. The largest artery in the body
- 5. are the smallest of a bodies blood vessels
- 7. blood vessels that carry the blood away from the heart
- 8. joins veins to Capillaries
- 10. The smallest arteries
- 11. vessels that unoxynated blood flows in.
- 13. Through two upper chambers of the heart which lets the blood move from the body to the heart.