Across
- 4. vein, venule
- 6. dividing a cavity, septum
- 8. chambers, atrium
- 9. swishing, murmur
- 12. pulse
- 13. phase, diastole
- 15. blood vessel, artery
Down
- 1. vessels, capillary
- 2. middle layer, myocardium
- 3. entering the heart, oxygen
- 5. contraction, systole
- 7. around the heart, pericardium
- 10. tip of heart, apex of the heart
- 11. vessel, vein
- 14. artery, aorta