The trachea bifurcates behind the arch of the aorta into the right and left principal (primary or main) bronchi. The bronchi divide dichotomously, giving rise to several million terminal bronchioles that terminate in one or more respiratory bronchioles. Each respiratory bronchiole divides into 2 to 11 alveolar ducts that enter the alveolar sacs. The alveoli arise from the walls of the sacs as diverticula.
Webster Dictionary Meaning
1. Bronchi- See Bronchus.
2. Bronchi- of Bronchus
Category: Medical & Health Sciences
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