Across
- 2. Structure that regulates blood flow within the heart chambers.
- 6. Number of heartbeats per minute, also known as pulse rate.
- 7. Double-layered sac that surrounds the heart and protects it.
- 8. artery Carries deoxygenated blood from the heart to the lungs.
- 9. artery Blood vessel that supplies oxygen-rich blood to the heart muscle.
- 10. Lower chamber of the heart that pumps blood to the lungs or body.
- 11. Largest artery in the body, originating from the left ventricle.
- 13. cycle Sequence of events in one complete heartbeat.
Down
- 1. Medical term for high blood pressure.
- 3. Recording of the electrical activity of the heart
- 4. valve Valve between the left atrium and left ventricle.
- 5. vein Carries oxygenated blood from the lungs to the heart.
- 12. Upper chamber of the heart that receives blood from the veins.