Across
- 2. part that extends from the mouth
- 5. carries blood away from the heart
- 6. also called windpipe
- 9. organs that transport blood
- 11. main branches of the trachea leads to nervous system
- 12. exchange between blood and cells in tissue
- 14. masses of the tissue that remove pathogens
Down
- 1. watery fluids that contains white blood cells
- 3. exchange of oxygen
- 4. network of organs and tissue
- 7. passageways that lead to the lungs
- 8. fluid carries nutrients,and wastes
- 10. vessel that carries blood
- 13. muscle and contains the vocal cords