CVD Crossword

4. Greater in size.
6. Opens when blood flows from the right atrium to the right ventricle.
11. Largest artery in the human body.
14. Very small vein.
15. Responsible for initiating the heartbeat.
16. Fewer in size.
18. Large vein that carries blood to the heart from other areas of the body.
19. Two upper chambers of the heart.
21. Blood vessels that carry blood towards the heart.
22. Produced when breathing out.
23. Allows blood to flow in only one direction through the heart.
24. Small branch of an artery leading into capillaries.

1. Fine branching blood vessels that form a network.
2. High blood pressure.
3. Transport oxygenated blood to the heart muscle.
5. Remove oxygen from.
7. Valve with only 2 flaps.
8. Severe pain in the chest.
9. Blood vessels that deliver oxygen-rich blood from the heart to the tissues of the body.
10. Spongy air-filled organs located on either side of the chest.
12. Enriched with oxygen.
13. Carries deoxygenated blood from the right ventricle to the lungs.
17. Cavity in an organ.
20. Without conscious control.