Across
- 3. Delivers unoxygenated blood from right ventricle to lungs.
- 4. Returns oxygenated blood from lungs to left atria.
- 5. TIP of Heart
- 6. The amount of blood that is pumped by the ventricles in 1 minute.
- 8. Thick,fibrous membrane that surrounds the heart.
- 10. Number of cardiac contractions per minute.
- 12. Amount of blood pumped out by either ventricle in a single cardiac contraction.
- 15. Vessel that returns venous blood back to heart.
- 17. Delivers oxygenated blood from left ventricle to the body.
- 18. Valves of the heart through which blood flows through from the atria to the ventricles.
- 20. Half-moon shaped valves that separate the heart from the aorta and pulmonary arteries.
Down
- 1. The largest and shortest myocardial blood vessels. Rapidly divides into the left anterior descending artery and the circumflex artery.
- 2. Middle layer of heart wall made mostly of cardiac muscle tissue.
- 7. Provides oxygenated blood to the right side of the heart muscle.
- 9. TOP of Heart
- 11. The percentage of blood that leaves the heart each time it contracts.
- 13. Layer of serous pericardium that lies closest against the heart; also called the visceral pericardium.
- 14. Period of relaxation in which the heart chambers are allowed to fill.
- 16. Specialized bands of tissue inserted between myocardial cells that increase the rate in which the action potential is spread from cell to cell.
- 19. Membrane that lines the inside of the heart.