The Cardiovasuclar System

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Across
  1. 1. The tip of the heart
  2. 3. The lower blood pressure number that reflects the lowest pressure exerted against artery wall during ventricular relaxation
  3. 6. The middle, muscular layer of the heart
  4. 8. Blood enters these after leaving the arterioles; their walls are just one cell thick
  5. 9. The inner lining of the heart
  6. 13. The two lower chambers of the heart
  7. 14. Structures that transport oxygen-rich blood to various parts of the body
  8. 15. The upper blood pressure number that reflects the highest pressure exerted against artery walls during ventricular contraction
Down
  1. 2. The fibrous membrane that encloses the heart
  2. 4. The outer lining of the heart
  3. 5. Tiny arteries
  4. 7. Tiny veins
  5. 10. A fatty, plaque-like substance that can narrow or block coronary vessels
  6. 11. The term that means "listening to"
  7. 12. The two upper chambers of the heart