Across
- 4. major organ where oxygen is picked up
- 7. this term means without oxygen
- 8. muscular organ with great importance to the body's survival
- 10. arteries carries blood from the heart
- 15. number of chambers in the heart
- 16. largest artery in the body
- 18. smallest blood vessels in the body
Down
- 1. medium sized blood vessels in the body
- 2. blood cells that fight diseases
- 3. causes our blood to form a clot
- 5. blood cells that carries oxygen and nutrients
- 6. this term means with oxygen rich with oxygen
- 9. a heart doctor
- 11. this artery wraps around the heart and constantly supplies the heart with oxygen
- 12. veins carries blood the heart
- 13. lower chambers that pushes blood out
- 14. upper chambers that receive blood
- 16. largest blood vessels in the body
- 17. the liquid part of blood