Across
- 2. a tube air goes down into the lungs
- 4. tiny sacs of lung tissue that have the movement between air and blood
- 5. little filter in the kidney that blood goes through
- 9. the transport system, transports nutrients, oxygen, carbon dioxide, etc
- 12. lower part of the heart
- 13. tiny hair like structures in the small intestine that absorb nutrients
- 14. very important for forming scabs
Down
- 1. absorbs water
- 3. a tube that food goes down into the stomach
- 6. passageways that lead the air to the lungs
- 7. filters waste from the blood
- 8. carry’s oxygen and carbon dioxide all around the body
- 10. absorbs nutrients
- 11. upper part of the heart
- 15. a group of cells doing the same function