Across
- 2. directional plane that separates body into front and back halves
- 4. nonliving, small pathogen
- 6. voicebox
- 7. "against" "life" medicine
- 9. large tubes that carry air from the trachea
- 13. where gas exchange occurs in the lungs
- 14. pathogenic, unicellular, living organism
- 15. main organ of the respiratory system
Down
- 1. blood vessels that carry blood away
- 3. closer to a point or to the trunk
- 5. organ that is the "command center"
- 8. this is carried by blood red cells and exchanged for carbon dioxide in alveoli
- 9. word that means "life"-"one who studies"
- 10. organ that pumps blood
- 11. closer to the midline
- 12. slow heart rate