Cardiovascular System

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Across
  1. 1. The division of the circulatory system that focuses on the exchange between the heart and tissues
  2. 3. Blood exits the left ventricle of the heart through this blood vessel
  3. 4. Side of the heart that contain deoxygenated blood
  4. 5. The heart _____ blood through the body
  5. 11. The division of the circulatory system that focuses on the exchange between the heart and lungs
  6. 12. Side of the heart contains oxygenated blood
  7. 13. Thick muscular walls, high in elastin, high pressure; Blood vessels that carry blood away from the heart
  8. 14. Blood enters the right atrium of the heart through this blood vessel
  9. 15. Relaxation of the heart
  10. 17. Outside layer of the heart
  11. 18. Blood flow is a ______-circuit system
Down
  1. 2. The space between the lungs here the heart lies
  2. 6. Contraction of the heart
  3. 7. Blood vessels that are one cell thick and connect arteries and veins
  4. 8. Heart muscle
  5. 9. Cardia-
  6. 10. Inner endothelial lining of the heart
  7. 16. Thinner walled, lower pressure, have valves; Blood vessels that carry blood back to the heart