CVD Crossword

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Across
  1. 2. Done without will or conscious control.
  2. 3. A hollow part or cavity in the heart.
  3. 4. A colorless, odorless gas that is produced through combustion and respiration.
  4. 7. Make or become smaller or fewer in size, amount, intensity, or degree.
  5. 10. A condition in which the blood vessels have persistently raised pressure.
  6. 11. The main artery of the body, supplying oxygenated blood to the circulatory system.
  7. 14. The ______prevent the backward flow of blood.
  8. 17. The _____ _____opens when blood flows from the right atrium to the right ventricle.
  9. 19. The artery carrying blood from the right ventricle of the heart to the lungs for oxygenation.
  10. 20. A large vein carrying deoxygenated blood into the heart.
  11. 22. Tiny blood vessels connecting arteries to veins.
  12. 23. An aortic valve that only has two leaflets, instead of three. The aortic valve regulates blood flow from the heart into the aorta.
  13. 24. A pair of breathing organs located with the chest which remove carbon dioxide from and bring oxygen to the blood.
Down
  1. 1. The ______ represents a cluster of myocytes with pacemaker activity. Under normal circumstances it generates electrical impulses that set the rhythm and rate of the heart.
  2. 5. Supplied, treated, or enriched with oxygen.
  3. 6. Supply blood to the heart muscle.
  4. 8. A condition marked by severe pain in the chest, often also spreading to the shoulders, arms, and neck, caused by an inadequate blood supply to the heart.
  5. 9. Remove oxygen from.
  6. 12. A small blood vessel in the microcirculation that allows deoxygenated blood to return from capillary beds to larger blood vessels called veins.
  7. 13. Become or make greater in size, amount, intensity or degree.
  8. 15. A small branch of an artery leading into capillaries.
  9. 16. The ______ are the blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body.
  10. 18. Any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart.
  11. 21. The two ______ are thin-walled chambers in the heart that receive blood from the veins.