Circulatory System

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Across
  1. 3. receives deoxygenated blood from the body
  2. 4. recording of the electrical events in the heart
  3. 6. faster than normal heart rate
  4. 8. gap junction that links cardiac muscle cells together
  5. 9. period between the start of one heartbeat and the start of the next
  6. 11. direct blood flow from the ventricles into the aorta and pulmonary trunk artery
  7. 13. a small, ear shaped appendage that extends anteriorly from each atrium
  8. 15. phase of the cardiac cycle where the heart relaxes
  9. 18. covers the inner surface of the heart wall
  10. 20. blood vessels that supply blood to the heart
  11. 21. my full name
Down
  1. 1. convey impulses to the contractile cells of the ventricular myocardium
  2. 2. largest artery of the body
  3. 5. phase of the cardiac cycle where the heart contracts
  4. 7. fibrous sac that surrounds the heart
  5. 10. broad end of the heart
  6. 12. outer layer of the heart wall
  7. 14. narrow end of the heart
  8. 16. transports oxygen-depleted blood from the upper extremities, head, and neck
  9. 17. controls the flow of blood from your heart's right atrium to the right ventricle
  10. 19. receives oxygenated blood from the lungs via the pulmonary veins