Across
- 4. Tricuspid valve
- 5. Universal blood donor
- 12. Listening to heart sound via stethoscope
- 13. Universal blood recipients
- 15. Aortic valve
- 16. Bicuspid valve
- 17. Carry blood away from the heart
- 18. The receiving chambers
- 20. The heart muscle itself
- 21. Thin outer layer
Down
- 1. Period between the start of one heart beat
- 2. Pulmonary valve
- 3. Controls blood flow
- 6. The pressure in your arteries when your heart rests between beats
- 7. Tendinous fibers attached to the AV valves
- 8. Functions to clot blood
- 9. Thick walled chambers separated from the atria by AV valves
- 10. Smooth, thin, membrane lining
- 11. Divides the heart
- 14. Carry blood to the heart
- 19. The pressure in your arteries when your heart beats