Across
- 2. Tiny airways that direct air throughout the lungs
- 4. Large muscle at the bottom of the chest cavity that helps with breathing
- 5. Where nutrients are absorbed
- 6. A group of tissues working together to perform an important function
- 7. Filters waste from blood
- 9. Absorbs water
- 11. Tiny filters in the kidney
- 13. Tiny sacs where oxygen exchange takes place
- 14. Where gas exchange in the respiratory system takes place
Down
- 1. stores urine
- 3. System that filters out waste
- 8. Lower chamber of the heart
- 10. A tube that connects the mouth to the stomach
- 12. A group of cells working together to perform a function
- 13. Upper chamber of the heart