Question

A _________ (lobar/main/segmental) bronchus leads into each lung: a ___________ (lobar/main/segmental) bronchus leads into a lobe of a lung; a ___________ (lobar/main/segmental) bronchus leads into a bronchopulmonary segment.

Answer 1

Answer:

1. Main

2. Lobar

3. Segmental

Explanation:

The main bronchus enters into each lung and divides to smaller lobar or secondary bronchi. Each lobe of the lung receives one lobar bronchus. There are three lobes in right lung and two lobes in the left lung.

The branching of lobar bronchus forms smaller bronchi known as segmental bronchi or tertiary bronchi. Each segmental bronchus supply particular bronchopulmonary segments within the lobes.

The further branching of segmental bronchi form bronchioles which in turn divide to form terminal bronchioles.