Across
- 1. The trachea is also known as the _____
- 3. Normal breathing rate
- 6. Volume of air left in the lungs after a forceful expiration
- 8. The lowest section of the pharynx
- 9. The serous membrane that covers lungs and inside of ribcage, parietal/visceral
- 10. Closes off the windpipe during swallowing
- 13. The most amount of carbon dioxide is carried in the blood asa these ions
- 15. Also known as the "voice box"
- 16. The walls of alveolar sacs are called _____
Down
- 2. Tube that connects the middle ear to the throat, equalizing airier pressure
- 4. The frontal, maxillary, sphenoidal and ethmoidal are all ________ sinuses
- 5. The external nares are also called ______
- 7. Receptors located in the carotid & aortic bodies that sense carbon dioxide & oxygen levels
- 11. Embedded in the pharynx and also part of the lymphatic system
- 12. The inspiratory muscles include the _____ & external intercostal muscles
- 14. When breathing stops completely for a period of time