The Circulatory System

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Across
  1. 2. Number of chambers in the human heart
  2. 4. Straw colored liquid that is the major component of blood
  3. 5. Node responsible for contraction of atria Node responsible for atria contraction
  4. 7. Vessels that carry blood away from the heart
  5. 8. Type of blood cell that is part of the immune system
  6. 9. Vessels that carry blood to the heart
  7. 10. Valve between the left atrium and the aorta
  8. 13. Protein that binds with platelets to form a clot
  9. 15. Coordinated movement of the heart muscle
  10. 17. Only artery that carries deoxygenated blood
  11. 19. Upper chambers of the heart
Down
  1. 1. Valve between right atrium and ventricle
  2. 3. Tiny vessels where gas exchange takes place
  3. 6. Node responsible for ventricle contraction
  4. 11. Lower chambers of the heart
  5. 12. Valve between left atrium and ventricle
  6. 14. Largest artery in the body
  7. 15. Protein responsible for transport of oxygen
  8. 16. Cell fragment involved in clotting
  9. 18. Type of blood cell that carries oxygen