Across
- 3. What the body needs but doesn't make
- 4. stores the bile
- 9. uses o2 to break apart glucose
- 11. Brings in o2 removes co2
- 14. space in chest
- 15. Organs that break food down into nutrients
- 17. Muscles push food through the digestive system
Down
- 1. exit tube
- 2. Food broken into smaller pieces
- 5. Cleans toxins from the blood makes bile
- 6. Tubes that connect the bladder and kidneys
- 7. Tiny air sacs in lungs
- 8. organ that filters blood
- 10. Regulates liquid in the blood
- 12. the change of food into new substances
- 13. liquid waste
- 16. small part of kidney that filters blood