► The trachea is also called windpipe
► The trachea and esophagus run parallel to each other through the chest cavity.
► The esophagus is connected to the stomach, and helps in carrying food and saliva to the stomach.
► The trachea, which is connected to the lungs, carries air to the bronchi and the lungs.
► As we breathe the air passes through the throat into the trachea (windpipe).
► The trachea is then divided into the left and right bronchi.
► Each bronchus divides again and again like a branch of a tree, becoming narrower and narrower.
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