Cardiovascular System

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Across
  1. 2. Tiny vessels that connect arteries and veins
  2. 5. Carries deoxygenated blood from the body to the heart
  3. 6. Clots blood
  4. 9. Carries oxygenated blood from the lungs to the heart
  5. 11. Inner most layer of the heart that lines the chambers and valves
  6. 12. Carries deoxygenated blood from the heart to the lungs
  7. 14. Fights infection
Down
  1. 1. Muscular middle layer of the heart
  2. 3. Largest artery in the human body
  3. 4. Lower chambers of the heart
  4. 5. Large vein that carries deoxygenated blood to the heart
  5. 7. Carries oxygenated blood from the heart to the body
  6. 8. Thin, fluid-filled sack that surrounds the heart
  7. 10. Upper chambers of the heart
  8. 13. Carries oxygen