Across
- 3. Capillaries have very _____ walls.
- 6. Veins take blood ________ the heart.
- 9. Which side of the heart takes blood to the lungs?
- 10. Which side of the heart is thicker?
- 11. This blood vessel takes blood to each cell in the body.
- 15. What word describes blood without oxygen?
- 17. What is the name of the top chambers of the heart?
Down
- 1. What is the name of the bottom chambers of the heart?
- 2. Arteries have thick layers of elastic fibres and ________.
- 4. Arteries carry blood at what type of pressure?
- 5. Which blood vessel has a wide lumen?
- 7. Arteries take blood _______ from the heart.
- 8. What word describes blood with oxygen?
- 12. What is the function of the circulatory system?
- 13. Veins carry blood at what type of pressure?
- 14. This blood vessel has valves.
- 16. What is the name of the organ that pumps blood around your body?