Across
- 1. transports blood
- 3. Exchange between non oxygenated blood and oxygenated blood
- 4. Carries blood to the heart
- 6. carries blood from the heart
- 8. chemical and mechanical digestion
- 9. exchange between o2 ans co2
- 10. Connects nose to mouth
- 12. voice box
- 14. Large muscular tube involved in the digestive system
- 15. muscle that moves lungs
Down
- 2. absorbs water
- 5. Connects trachea to bronchioles
- 7. absorbs nutrients
- 11. windpipe
- 13. begins respiratory system