Across
- 3. The wave on an ECG that corresponds to ventricular depolarization.
- 5. The formula for cardiac output is heart rate (HR) multiplied by stroke volume (SV).
- 9. A calcium pump in the sarcoplasmic reticulum that helps the heart relax.
- 11. The valve separating the right atrium and right ventricle.
- 13. The middle, muscular layer of the heart wall.
- 14. The outermost layer of the heart wall.
- 16. The valve separating the left atrium and left ventricle.
- 17. The phase of the heartbeat when the heart muscle contracts.
- 18. The artery carrying deoxygenated blood from the heart to the lungs
- 19. The formula: EDV – ESV = ____.
- 22. The normal rhythm generated by the heart's natural pacemaker.
- 24. This valve prevents backflow into the left ventricle
- 25. The lower left chamber of the heart, responsible for pumping oxygenated blood to the body.
- 27. The phase of the heartbeat when the heart muscle relaxes
- 28. A condition of persistently high blood pressure
Down
- 1. The period in the cardiac cycle when ventricles contract but no blood is ejected.
- 2. Electrical system component that acts as the heart's pacemaker
- 4. The main pump of the circulatory system
- 6. Thin structures in veins and the heart that prevent backflow of blood.
- 7. A condition where the ductus arteriosus fails to close after birth
- 8. The chamber that receives oxygenated blood from the lungs
- 10. The innermost layer of the heart wall.
- 12. A diagnostic imaging test used to visualize the heart.
- 15. The formula: __ = (MAP – CVP) ÷ CO.
- 20. The vessel that delivers deoxygenated blood from the body to the right atrium.
- 21. A diagram showing the relationship between cardiac cycle phases, pressures, and volume.
- 23. The heart's ability to relax during diastole.
- 26. A common lead used in ECGs to measure the electrical activity of the heart.