The respiratory system

123456789101112131415
Across
  1. 1. Each lung has separate sections called
  2. 4. Bones that divide the nasal cavity
  3. 5. Open air-filled cavities sitting within the bones of the cranium
  4. 7. The nasal concha which is not part of the ethmoid bone
  5. 10. Dome shaped muscle involved in breathing
  6. 11. The nerve responsible for smell
  7. 13. ribs Ribs which are not connected to the sternum at all are called
  8. 14. Voice box
Down
  1. 2. The trachea bifurcates into left and right main
  2. 3. apple The laryngeal prominence is known by the lay person as
  3. 6. The xiphoid process is found on the
  4. 8. Prevents food from entering the trachea
  5. 9. Windpipe
  6. 12. Each lung is enclosed in a double layered sac called the
  7. 15. Another name for the nostrils is