Terminology Service for NFDI4Health

lobar bronchus

Go to external page http://purl.obolibrary.org/obo/UBERON_0002183


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]. [ http://en.wikipedia.org/wiki/Secondary_bronchus http://amigo.geneontology.org/amigo/term/GO:0060482 ]

Term info

Label

lobar bronchus

Synonyms
  • bronchi lobaris
  • secondary bronchus
database cross reference
Subsets

uberon_slim, organ_slim

depicted by

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

has related synonym

lobar bronchi, secondary bronchi

id

UBERON:0002183

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.