The lobar bronchus is the major airway within the respiratory tree that starts by division of the principal bronchi on both sides and ends at the point of its own subdivision into tertiary or segmental bronchi[GO]. [ ]

Synonyms: secondary bronchus bronchi lobaris

This is just here as a test because I lose it

Term information

database cross reference

uberon_slim, organ_slim

depicted by

has related synonym

lobar bronchi

secondary bronchi



structure notes

They have relatively large lumens that are lined by respiratory epithelium. There is a smooth muscle layer below the epithelium arranged as two ribbons of muscle that spiral in opposite directions. This smooth muscle layer contains seromucous glands. Irregularly arranged plates of hyaline cartilage surround the smooth muscle. These plates give structural support to the bronchus and maintain the patency of the lumen.