The divisions of the bronchial tree and its histological changes from main bronchus to segmental bronchus. Introduction: The lung is the principle organ of respiration. The main function of the bronchus is the exchange of gases such as oxygen and carbon dioxide. The bronchus is a main branch of air tube that enters the hilum of the lung. The main bronchus is 2 to 3 cm long which extends from the trachea or wind pipe. It extends to form roughly 65,000 terminal bronchioles. The right bronchus forms three branches – the superior, middle, and inferior bronchi. The left main bronchus forms two narrow branches – the superior and inferior bronchi.

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Chapter 22.1, Problem 9AYLO

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The divisions of the bronchial tree and its histological changes from main bronchus to segmental bronchus.

Introduction:

The lung is the principle organ of respiration. The main function of the bronchus is the exchange of gases such as oxygen and carbon dioxide. The bronchus is a main branch of air tube that enters the hilum of the lung. The main bronchus is 2 to 3 cm long which extends from the trachea or wind pipe. It extends to form roughly 65,000 terminal bronchioles. The right bronchus forms three branches – the superior, middle, and inferior bronchi. The left main bronchus forms two narrow branches – the superior and inferior bronchi.

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