Across
- 4. human breath this in
- 7. Carries nutriented blood toward the heart
- 8. a system that transports blood through the body
- 10. A gas that is expelled by the respiratory sytem
Down
- 1. cells made in the bone marrow
- 2. Curculation between the lungs and the heart
- 3. Circulation that supplies all organs with blood and adds oxygen to muscles
- 5. Carries blood away from the heart
- 6. and organs in the human body
- 9. small vessels where exchanges take place with blood cells