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