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