The heart

Word Bank
aorta, arteries, atrioventricular valves, chambers, deoxygenated, left, left atrium, left ventricle, lungs, oxygenated, pulmonary artery, pulmonary veins, right, right atrium, right ventricle, semilunar valves, veins, vena cava

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Across

1. The heart has four of these.

4. Blood vessels that carry blood away from the heart.

6. The only artery that carries deoxygenated blood as it carries blood from the heart to the lungs. (2 Words)

7. This chamber of the heart pumps blood around the whole body. (2 Words)

8. Blood vessels that carry blood in towards the heart.

9. This chamber of the heart receives blood from the vena cava. (2 Words)

11. These blood vessels carry blood from the lungs to the heart. (2 Words)

13. A very large vein that carries deoxygenated blood to the heart. (2 Words)

15. This side of the heart has thicker, more muscular walls.

16. This chamber of the heart pumps blood to the lungs. (2 Words)

17. These organs are where the blood is pumped to pick up oxygen and get rid of carbon dioxide.

18. Blood that contains oxygen.

Down

2. These prevent back flow of blood from the ventricles to the atria. (2 Words)

3. This chamber of the heart receives blood from the lungs. (2 Words)

5. These prevent back flow of blood back into the ventricles. (2 Words)

10. Blood that does not contain oxygen.

12. This side of the heart pumps blood to the lungs.

14. A very large artery that carries oxygenated blood away from the heart.

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