Terminology Service for NFDI4Health

segmental bronchus

Go to external page http://purl.obolibrary.org/obo/UBERON_0002184


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]. [ http://en.wikipedia.org/wiki/Segmental_bronchus ]

Term info

Label

segmental bronchus

Synonyms
  • tertiary bronchus
database cross reference
Subsets

uberon_slim, organ_slim

depicted by

http://upload.wikimedia.org/wikipedia/commons/d/df/Illu_quiz_lung05.jpg

id

UBERON:0002184