Across
- 2. breathe in
- 4. the main/ biggest artery leaving your heart
- 5. Blood vessels are veins and _____
- 7. breathe out
- 10. the heart has ____ chambers
- 11. cellular ___ the process where energy is released from glucose
- 12. largest vein in the body
- 14. oxygen breathed in is exchanged for co2 here
- 15. carries blood to the heart
Down
- 1. after coming in our mouth or nose, air goes down the ___
- 3. the smallest type of blood vessel
- 6. this makes up more than half of the blood volume
- 8. the bottom chambers of the heart
- 9. is red in colour and is found in red blood cells
- 13. the colour we show deoxygenated blood