Across
- 2. liquid waste
- 4. organ that filters blood
- 7. small part of kidney that filters blood
- 9. space in the chest
- 10. system that regulates liquid in the blood
- 12. system that brings in oxygen and removes carbon dioxide
- 13. stores the bile
- 14. muscles push food through the digestive system
- 15. tubes that connect to the bladder and kidney
- 16. exit tube
- 17. tiny air sacs in lungs
Down
- 1. system where organs that break food down into nutrients
- 3. digestion that breaks food into smaller pieces
- 5. digestion where the food is changed into a new substance
- 6. what the body needs but doesn't make
- 8. cleans toxins from the blood, makes bile
- 11. uses oxygen to break apart glucose