Across
- 5. A cell fragment
- 6. Allows air to pass to and from lungs
- 9. Carries blood to the heart
- 10. Carries blood away from the heart.
- 12. Tiny finger shaped structures
- 13. Exchanges oxygen and carbon dioxide with the blood
- 14. The passages that direct air into the lungs
Down
- 1. Large muscular sac, chemical and mechanical digestion of food.
- 2. intestine- Most nutrient absorption takes place
- 3. Lower chamber of the heart
- 4. Where digestion begins
- 5. Liquid part of blood
- 7. tiny sacs of lung tissue specialized for the movement of gases between air and blood
- 8. Connects arteries and veins.
- 11. blood cell- Carries oxygen from the lungs to the body cells