Cardiovascular system heart

2. A valve consisting of three cusps
3. Process in which fatty substances are deposited in the walls of the arteries resulting in an impeded blood flow
8. A recording that is produced by electrical currents created by the action potentials of the conduction system that is detected by electrodes placed on the skin’s surface
9. The inferior pointed end of the heart
10. The structure that separates the right ventricle from the left ventricle
15. The middle thickest layer that is composed of cardiac tissues responsible for the heart’s contraction and pumping of blood.
18. The natural pacemaker of the heart
19. The type of blood vessel that Carries the blood away from the heart
20. An oval depression on an interatrial septum

1. Tendon like cords that connect to papillary muscles
4. The type of blood the coronary arteries of the heart delivers to the myocardium.
5. A major vein that collects blood from the coronary circulation back into the heart
6. Microscopic blood vessels that connect arterioles to venules
7. The phase of relaxation in the cardiac cycle
11. The type of hormone that increases the heart rate
12. An excess of what nutrient will increase the heart rate and contraction force
13. The outer layer of the serous pericardium that is fused to the fibrous pericardium
14. The membrane that surrounds the heart
16. The lower chambers of the heart
17. The first heart sound