Across
- 1. the 2 valves between the large arteries
- 3. valve in between the right ventricle and the pulmonary artery
- 6. the 2 valves between atria and ventricles
- 7. the side that will fill up with blood first, has no oxygen
- 8. relaxation
- 10. the sound that is made when semilunar valves are closing
- 12. the outer layer of the heart
- 13. contraction
- 14. the 5 events that complete 1 heartbeat (two words)
- 19. in charge of having ventricles contract (two words)
- 20. the layer in the heart that lines the chambers
- 21. the conduction system that sets the heart beats to be 75 bpm
Down
- 2. the layer in the heart that is in charge of the contractions
- 4. the side that will fill up with blood after it receives oxygen
- 5. largest artery in the body
- 9. the pacemaker of the heart (two words)
- 11. valve in between the left atrium and ventricle
- 15. valve in between the left ventricle and the aorta
- 16. organ that will give oxygen blood
- 17. largest vein in the body (two words)
- 18. valve in between the right atrium and ventricle