Across
- 2. carry deoxygenated blood towards the heart.
- 4. carry oxygen in our blood. Approx 45% of our blood
- 6. thick muscular walls to handle the blood pressure from the heart
- 7. left and right chambers that receive blood into the heart
- 8. help to fight infection in our body
- 11. means lungs
- 12. the chemical reaction where O2=>CO2 forming energy
Down
- 1. the tubes in our body that our blood travels through
- 3. Left and right chamber that sends blood out of the heart.
- 5. the intake of Oxygen and release of Carbon dioxide
- 9. a vessel that has both oxygenated and deoxygenated blood in it.
- 10. main artery from the heart to the body
- 11. carries nutrients and sugar in our blood