Across
- 1. lowest point of the heart
- 4. swishing sound due to improper closing of the heart valves
- 6. carries blood from tissues and lungs back to the heart
- 8. calm heartbeat
- 11. inside border of blood vessels
- 12. upper chambers of the heart
- 14. an instrument that is used to measure blood pressure
- 15. tiniest blood vessel
Down
- 2. double thick membrane around the heart
- 3. heartbeat
- 5. heartbeat contraction
- 7. this opens and closes in the vein or heart for directional blood flow
- 9. a wall that divides a cavity
- 10. inside border of the heart
- 13. a small vein