parts of the heart

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Across
  1. 1. A platelet, which helps with blood clotting.
  2. 4. The outer layer of the heart, a protective sac.
  3. 5. Cava: A large vein that carries deoxygenated blood to the right atrium of the heart.
  4. 7. A tiny blood vessel that allows for the exchange of nutrients and gases between blood and tissues.
  5. 8. Artery: An artery that carries deoxygenated blood from the heart to the lungs.
  6. 9. An upper chamber of the heart.
  7. 10. The largest artery in the body, carrying oxygenated blood away from the heart.
  8. 12. A white blood cell, involved in fighting infection.
  9. 13. The inner lining of the heart.
  10. 14. A blood vessel that carries blood away from the heart.
Down
  1. 2. The muscular middle layer of the heart.
  2. 3. Vein: A vein that carries oxygenated blood from the lungs back to the heart.
  3. 5. A lower chamber of the heart.
  4. 6. A red blood cell, responsible for carrying oxygen.
  5. 11. A blood vessel that carries blood towards the heart.