Answer
It begins from the external nares to the alveolus. It continues on nasal cavity, pharynx, larynx, the trachea, the left and right primary bronchi, secondary bronchi, tertiary bronch and the successive bronchi orders, bronchioles, terminal bronchioles which are the respiratory bronchioles, aleveolar ducts, aleveolar sacs, and alveoli.
Work Step by Step
It begins from the external nares to the alveolus. It continues on nasal cavity, pharynx, larynx, the trachea, the left and right primary bronchi, secondary bronchi, tertiary bronch and the successive bronchi orders, bronchioles, terminal bronchioles which are the respiratory bronchioles, aleveolar ducts, aleveolar sacs, and alveoli.
