Cardiovascular Anatomy

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Across
  1. 1. mitral valve closure to aortic valve closure is isovolumic __________
  2. 4. lines the innermost chambers of the heart
  3. 7. internodal pathways send ______ electrical impulses between the SA & AV nodes
  4. 8. veins have _______ that prevent the backflow of blood
  5. 9. its intrinsic rate is 40-60bpm
  6. 11. the tough external layer of a blood vessel
  7. 12. carry blood back towards the heart
  8. 13. valve between the right atrium & right ventricle
  9. 15. thickest layer of the heart
  10. 16. the lowest part of the anatomical heart
Down
  1. 2. the pulmonary veins carry _________ blood
  2. 3. the ability of cells to respond to electrical stimuli
  3. 5. isovolumic relaxation happens during ________
  4. 6. carry blood low in oxygen
  5. 9. carry blood away from the heart
  6. 10. waste products are exchanged here
  7. 14. the heart contains _____ chambers
  8. 16. blood flows from the left ventricle to the ______