Across
- 3. A special leaf-like piece of cartilage closes the opening into the larynx
- 5. Also known as a windpipe, the bony tube that connects the nose and mouth to the lungs
- 8. Consists of two nostrils and is located on the face
- 9. The movement of air between the environment and the lungs via inhalation and exhalation
- 10. The passageways by which air passes through the nose or mouth to the alveoli of the lungs
- 12. The movement of molecules from an area of high concentration to one of low concentration
- 13. The primary organ of respiration
- 15. A muscle that is at the bottom of the ribcage which assists the lungs
Down
- 1. Tiny hair like structures that filters the nose
- 2. The movement of oxygen from the outside air to the cells within tissues, and the transport of carbon dioxide in the opposite direction
- 4. The drawing in of a substance into the lungs
- 6. The process that moves air in and out of the lungs
- 7. The large air tubes leading from the trachea to the lungs, carrying air to the lungs
- 11. A condition in which the air sacs of the lungs are damaged and enlarged, causing breathlessness
- 14. A hollow muscular organ forming an air passage to the lungs, the voice box