Cardiac Quest

4. Another name for the bicuspid valve, between the left atrium and left ventricle
6. A test that measures the electrical activity of the heart
9. Largest artery in the body, carries oxygenated blood from the heart to the rest of the body
12. Structure that delays the electrical impulse before passing to the ventricles
15. Specialized cardiac cells for conduction, found in ventricles
16. Fibrous strings that anchor AV valves
18. Blood vessel that supplies the heart muscle itself
21. Muscle layer of the heart wall
22. Node that initiates the heartbeat
23. Microscopic vessels where gas exchange occurs
24. Valve between the left atrium and left ventricle

1. Blood vessel that carries oxygen-rich blood from the lungs to the heart
2. A device that helps regulate the heartbeat, or the natural node in the heart that controls rhythm
3. Blood vessel that carries deoxygenated blood to the lungs
5. First chamber that receives deoxygenated blood from the body
7. The amount of blood the heart pumps in one minute
8. Phase of the heartbeat when the heart contracts and pumps blood
10. Valve between the right atrium and right ventricle
11. Wall that divides the left and right sides of the heart
13. Chamber that pumps oxygenated blood to the body
14. Large vein that carries deoxygenated blood from the body to the right atrium
17. Inner lining of the heart
19. Phase of the heartbeat when the heart muscle relaxes and the chambers fill with blood
20. Protective sac surrounding the heart