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Upper Respiratory Tract

Upper Respiratory Tract

Author: Nathan Lampson

This lesson will give an overview of the major structures and functions associated with the upper respiratory tract.

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Terms to Know

Covers the larynx during swallowing to prevent food or liquids from entering the lungs.


The airway in which sound is produced (commonly known as the “voicebox”).

Nasal Cavity

The main cavity through which air is drawn in from the outside environment.

Oral Cavity

A secondary cavity through which air is drawn in from the outside environment.


Connects the nasal cavity to the mouth (commonly known as the “throat”).


Connects the larynx to the lower respiratory tract (commonly known as the windpipe).