Across
- 2. Secret identity of Mr. Dauphinais.
- 4. Largest vein in the human body.
- 8. Type of exercise you should do at least 5 times a week.
- 9. The body's disease fighters that stop the spread of infections!
- 10. Blood pump of the body.
- 12. Flap of tissue that makes sure blood only flows in one direction.
- 13. Vessels that carry blood away from the heart
- 14. The tendency of an organism to maintain a stable internal environment.
Down
- 1. Largest artery in the body.
- 3. Cells that carry oxygen and carbon dioxide through the blood
- 5. The smallest unit of life.
- 6. (singular) Lower chamber of the heart.
- 7. Vessels that carry blood away from the heart.
- 11. (singular) Upper chamber of the heart.