Across
- 1. What is the vertical divider in the heart called?
- 6. A function of the circulatory system is to protect against what?
- 7. The blood, the blood vessels and the heart make up which system?
- 10. What are the bottom chambers of the heart called?
- 12. Name the type of muscle found in your arms and legs.
- 13. This is the thickest type of blood vessel.
- 15. This colour of blood cell helps the body fight infection.
Down
- 2. This substance makes up 55% of our blood.
- 3. What are the chambers at the top of the heart called?
- 4. Blue represents which type of blood?
- 5. How many chambers does a human heart have?
- 8. An example of an artery.
- 9. The left side of the heart pumps blood to the ...
- 11. What do you call the type of muscle unique to the heart?
- 14. Which colour represents oxygenated blood?