Across
- 1. Tiny hair-like structures that help trap and remove particles from the airways.
- 6. Microscopic air sacs in the lungs where gas exchange occurs.
- 8. Scale A tool used to measure acidity or alkalinity in the body.
- 9. The process of breathing out.
- 11. Septum The structure that divides the nasal passages into left and right sides.
- 13. A small flap of cartilage that prevents food from entering the respiratory tract.
- 14. Air-filled spaces in the skull that help warm and moisten inhaled air.
- 15. Fluid Lubricating fluid between the pleurae that reduces friction.
Down
- 2. The process of breathing in.
- 3. The elastic quality that allows the lungs to expand and contract.
- 4. The windpipe that connects the throat to the lungs.
- 5. Also known as the voice box, it plays a key role in speech.
- 7. The part of the throat located behind the mouth.
- 10. Another term for nostrils.
- 12. Membranes covering the lungs.