Across
- 4. Muscles push food through digestive system
- 7. Space in chest
- 8. Small part of kidney that filters blood
- 11. Exit tube
- 13. Uses oxygen to break apart glucose
- 16. Digestion that breaks food into smaller pieces
- 17. Liquid waste
Down
- 1. Tiny air sacs in lungs
- 2. Stores bile
- 3. Tubes that connect the bladder and kidneys
- 5. Organ that filters blood
- 6. System that breaks down food into nutrients
- 9. Cleans toxins from the blood, makes bile
- 10. What the body needs, but doesn't make
- 12. System that regulates liquid in the blood
- 14. System that brings in oxygen and removes carbon dioxide
- 15. Digestion that changes food into new substances