Across
- 3. The system of the body that moves around blood
- 6. The two places where oxygen poor blood go in
- 9. The system of the body that deals with the senses
- 11. Air sacs where diffusion between CO2 and 02 occurs
- 13. The system of the body that enables you to break down food
Down
- 1. The smaller version of Bronchi
- 2. The opening in the respiratory system with one hole
- 4. Between the larynx and bronchi in the respiratory system
- 5. The act of pushing food downward in the digestive system
- 7. The heart vessel type that sends blood to the rest of the body
- 8. What occurs when the body maintains equilibrium
- 9. The opening in the respiratory system with two holes
- 10. The system of the body that lets people breathe
- 12. The muscle in the heart that is not in the circulatory system