Across
- 3. Double-layered membrane surrounding the heart.
- 5. cava Largest vein in the body.
- 7. is the Largest artery in the body.
- 8. Innermost lining of blood vessels.
- 10. Beat of the heart as felt through the walls of the arteries.
- 12. Small artery.
- 14. Abnormal swishing sound caused by improper closure of the heart valves
- 15. One of two lower chambers of the heart.
- 16. Muscular middle layer of the heart.
Down
- 1. Instrument to measure blood pressure.
- 2. Inner lining of the heart.
- 4. Contraction phase of the heartbeat.
- 6. One of two upper chambers of the heart.
- 9. Relaxation phase of the heartbeat.
- 11. Record of the electrical activity of the heart.
- 13. Small vein.