Chapter 12 Vocabulary

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Across
  1. 4. cell fragments that play an important role in the blood clotting process
  2. 6. a disorder in which respiratory passageways become inflamed
  3. 8. the sacs in the lungs where gases are exchanged between the air and blood
  4. 12. blood pressure that is consistently 140/90 or greater
  5. 13. a small group of cells in the wall of the right atrium that controls the rate at which the heart muscles contract
  6. 14. large, thin-walled blood vessels that carry blood to the heart
  7. 15. blood vessels that carry blood away from the heart
Down
  1. 1. irregular heartbeat
  2. 2. a lower chamber of the heart that pumps blood out of the heart
  3. 3. a substance that builds up in artery walls
  4. 4. the liquid compound of the blood
  5. 5. a condition in which an artery wall hardens and thickens due to plaque buildup
  6. 7. an upper chamber of the heart that receives blood from the rest of the body
  7. 9. the smallest blood vessels in your body
  8. 10. an infection that causes the mucous membranes lining the bronchi to become inflamed
  9. 11. a dome shaped muscle below the lungs that is involved in the breathing process