Across
- 4. Name for the vena cava that comes from the top half of the body
- 5. Smallest blood vessel. Only one cell thick
- 6. Part of the circulatory system. Pumps blood
- 7. The bottom camber in the heart
- 9. Carries blood to the lungs
- 12. Part of the digestive system
- 14. Bring in oxygen and exchange carbon dioxide. Part of the respiratory and excretory systems
- 15. Name of the major vein that returns blood to the heart
- 18. Name for blood vessels that carry blood to the heart
Down
- 1. Name for the vena cava that comes from the bottom half of the body
- 2. Major artery that carries blood away from the heart
- 3. Name for blood vessels that carry blood away from the heart
- 4. Longest part of the digestive system
- 8. Name for the wind pipe after it branches off towards the left and right lung
- 9. Carries blood from the lungs back to the heart
- 10. Tiny air sac in the lungs
- 11. Filter blood and create urine. Part of the excretory system
- 13. Holds urine before it is excreted
- 16. The top chamber in the heart
- 17. Excretes sweat as part of the excretory system