Cardiovascular System Terms

1234567891011121314
Across
  1. 2. The smallest blood vessel where gas exchange occurs.
  2. 5. A blood vessel that returns blood to the heart.
  3. 6. A blood cell also called a platelet, involved in clotting.
  4. 9. The blood vessel that carries oxygenated blood from the lungs to the heart.
  5. 11. The inner lining of the heart chambers.
  6. 12. The blood vessel that carries deoxygenated blood from the heart to the lungs.
  7. 14. A white blood cell that fights infection and disease.
Down
  1. 1. The muscular middle layer of the heart wall.
  2. 3. The largest artery in the body that carries oxygenated blood from the heart to the body.
  3. 4. The lower chamber of the heart that pumps blood out.
  4. 5. The large vein that returns deoxygenated blood to the heart.
  5. 7. A blood vessel that carries blood away from the heart.
  6. 8. The membrane surrounding and protecting the heart.
  7. 10. The upper chamber of the heart that receives blood.
  8. 13. A red blood cell that carries oxygen throughout the body.