Anatomy of the Heart

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Across
  1. 3. these arteries supply oxygenated blood to the heart and neck regions of the body
  2. 6. the muscular middle layer of the wall of the heart
  3. 7. carry blood that is oxygen poor
  4. 12. felt to find a pulse
  5. 15. valve between the left atrium and left ventricle
  6. 17. the inner layer of the heart
  7. 18. the smallest arteries
  8. 20. the sound made when valves open and close
  9. 21. when ventricles relax and fill with blood
  10. 23. carries oxygen poor blood from the body to the heart (2 words)
  11. 25. cardiac __ is the rate at which the conducts electrical impulses
  12. 26. the bundle of fibers that carry cardiac impulses
Down
  1. 1. valve between the right ventricle and the pulmonary artery
  2. 2. fiber branches that extend from the atrioventricular bundle
  3. 3. the heart has 4 of these
  4. 4. fluid filled sac that surrounds the heart
  5. 5. valve between the right atrium and the right ventricle
  6. 8. when ventricles pump blood out of the heart
  7. 9. the outer layer of the wall of the heart
  8. 10. one of the upper heart chambers
  9. 11. one of the lower chambers of the heart
  10. 13. the two large veins that join to form the superior vena cava
  11. 14. section that sets the heart rate
  12. 16. valve between the left ventricle and the aorta
  13. 19. chambers that collect blood as it enters the heart
  14. 22. tiny vessels connecting arteries and veins
  15. 23. chambers that pump blood to the lungs
  16. 24. these arteries carry oxygenated and nutrient filled blood to the heart muscle