Upper Respiratory System vs. Lower Respiratory System
There are two parts to our respiratory system: 1) the upper respiratory system and 2) the lower respiratory system. We will explain the differences between the upper and lower respiratory system and the differences between upper respiratory tract infections and lower respiratory tract infections.
What are the differences between the upper and lower respiratory system?
Our Upper Respiratory System:
Our upper respiratory system contains the following structures: nose/nostrils, nasal cavity, mouth, throat or pharynx, and larynx above the vocal folds. The main function of the upper respiratory system is to filter, warm, and humidify the air. Other functions include providing a clear patent airway for air to enter and exit the lungs through nose and mouth.
Our Lower Respiratory System:
Our lower respiratory system contains the following structures: larynx below the vocal folds, trachea or windpipe, lungs, bronchi, bronchioles, alveoli, and diaphragm. The
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