segmental bronchus

tertiary bronchus

The tertiary bronchi (also known as the segmental bronchi) arise from the secondary bronchi. The respiratory epithelium lining their lumen is surrounded by a layer of smooth muscle. This layer is composed of two ribbons of smooth muscle that spiral in opposite directions. The smooth muscle layer is surrounded by irregular plates of hyaline cartilage which help maintain the patency of the airway. Each of the tertiary bronchi serves a specific bronchopulmonary segment. There are 10 tertiary bronchi in the right lung, and eight in the left. The tertiary bronchi get smaller and divide into primary bronchioles. [WP,unvetted].

Type Bone
Parent Structure intrapulmonary bronchus
Latin Name tertiary bronchus
FMA ID 7407

Sub-structures

right lung accessory lobe segmental bronchus Organ right lung caudal lobe segmental bronchus Organ right lung cranial lobe segmental bronchus Organ

Frequently Asked Questions

What is the segmental bronchus?
The tertiary bronchi (also known as the segmental bronchi) arise from the secondary bronchi. The respiratory epithelium lining their lumen is surrounded by a layer of smooth muscle. This layer is composed of two ribbons of smooth muscle that spiral in opposite directions. The smooth muscle layer is
What is the Latin name for the segmental bronchus?
The Latin name for the segmental bronchus is tertiary bronchus.

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