Across
- 5. Main artery from the heart.
- 6. Fights off infections.
- 9. The line between the two sides of the heart.
- 11. Transport oxygen using hemoglobin.
- 12. High O2 blood.
- 14. Acts like a vein but isn't.
- 15. Stop blood going backwards.
- 16. when particles move / spread out.
Down
- 1. The top of the heart of the right side
- 2. Helps blood clot to prevent bleeding out.
- 3. Carry blood around the body.
- 4. Protein in the blood.
- 7. Low O2 Blood.
- 8. Not oxygenated.
- 10. A major vein that moves blood into the heart.
- 13. The smallest blood vessel.