Cardiovascular System

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Across
  1. 1. blood cell that carries oxygen
  2. 4. name of the bottom 2 chambers of the heart
  3. 8. structure that prevents the backflow of blood
  4. 10. blood vessel that allows the exchange of material with the body cells
  5. 11. thickest walled blood vessel
  6. 12. side of the heart that has a thicker muscle
  7. 13. liquid that carries blood cells
  8. 14. blood vessel with slow flowing blood to the heart
  9. 15. name of the top 2 chambers of the heart
Down
  1. 2. describes the blood moving through the pulmonary artery
  2. 3. meaning of the lungs
  3. 5. main vein bringing blood from the body to the heart
  4. 6. blood cells that contribute to the immune system
  5. 7. fragments that heal cuts
  6. 9. main artery taking blood from the heart to the body