Across
- 3. system system that gets rid of cellular waste from your body and controls water balance.
- 9. system transports oxygen, waste, nutrients, hormones, heat and more around the body.
- 10. upper chamber of the heart.
- 11. smallest type of blood vessel.
- 12. the liquid part of blood.
- 14. cell fragment that's important on forming scabs.
- 15. tiny hair-like projections that line the inside of the small intestine.
Down
- 1. airways in the lungs that lead from the bronchi to them alveoli.
- 2. allows air to pass to and from lungs.
- 4. group of similar cells that perform the same function.
- 5. found in the kidney, filters blood through.
- 6. lower chamber of the heart.
- 7. an organ that exchanges oxygen and carbon dioxide with the blood.
- 8. the passages that direct air into the lungs.
- 13. tiny air sacs of the lungs which allow rapid gas exchange.