Across
- 3. Stage of cardiac contraction is known as
- 4. The first valve that deoxygenated blood must move through is the
- 5. Arteries that supply the heart with a rich supply of blood
- 7. (2wd) On an ECG, atrial depolarization (contract) occurs at which point
- 10. (2wd abrev.) Heart Pacemaker
- 11. (2wd) Muscular ridges in ventricles with similar functions to papillary muscles
- 15. Middle layer of the heart. Contains cardiac muscle cells.
- 16. The largest artery in the human body is known as the.
- 17. Fluid that exists between visceral and parietal pericardial layers
- 19. Innermost layer of the heart with smooth walls.
Down
- 1. Blood returning from the lungs must move through this a.v. valve
- 2. (2wd) The name of the structure two adjacent cardiac myocytes form when they are bound together.
- 6. Outermost layer of the heart. Also known as the visceral pericardium
- 8. On an ECG the complex that represents ventricular depol. and atrial repol. is the
- 9. (2wd) Structure that returns blood to the r. atrium.
- 10. Valves that connect ventricles to vessels
- 12. (2wd) Structure that connects a.v. valves to papillary muscles
- 13. This structure is located within the atria and contain pectinate muscles
- 14. Stage of cardiac relaxation is known as
- 18. Oxygenated or deoxygenated blood flows to the heart in this general vessel.