Across
- 4. Upper receiving chambers of the heart.
- 6. Blood vessels that carry blood back to the heart.
- 7. Medical term for fatty plaques that build up in the arteries.
- 11. The valve between the left atrium and left ventricle.
- 12. Circulation system that carries blood to the lungs and back to the heart.
- 14. The pointed bottom part of the heart.
- 15. The heart muscle tissue itself.
- 16. Blood vessels that carry blood away from the heart.
- 19. A heart attack
- 20. The phase of the heartbeat when the heart muscle contracts; pressure when ventricles contract.
Down
- 1. Protein in red blood cells that carries oxygen.
- 2. The phase of the heartbeat when the heart muscle relaxes; pressure when ventricles relax.
- 3. A problem with the rate or rhythm of the heartbeat.
- 5. The largest artery in the body, carrying oxygenated blood to the body.
- 8. Smallest blood vessels where nutrient and gas exchange occurs between blood and tissues.
- 9. Abnormally high blood pressure.
- 10. Muscular wall that separates the right and left sides of the heart.
- 13. Double-layered membrane surrounding the heart.
- 17. The fluid portion of the blood.
- 18. Lower chambers of the heart responsible for pumping blood.