What are the first branches of the human respiratory system?
1 Answer
Dec 22, 2015
The trachea branches into two primary bronchi.
Explanation:
Air enters through the mouth and nose then travels along the pharynx and trachea. The trachea then branches into two main airways - the primary bronchi. Each primary bronchi then enters the lung and and divides into secondary bronchi, then once again into multiple tertiary bronchi.