The trachea
This is the trachea in relation to the rest of the respiratory system.
This is the trachea in relation to the rest of the respiratory system. It shows the upper respiratory and lower respiratory tracts. The upper respiratory tract contains the nasal cavity, pharynx, and larynx. The lower respiratory tracts contains the trachea, primary bronchi, and lungs.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Illu conducting passages."
http://en.wikipedia.org/wiki/File:Illu_conducting_passages.svg
Wikipedia
Public domain.
