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

This is just here as a test because I lose it

Term information

database cross reference
Subsets

uberon_slim, organ_slim, human_reference_atlas

definition
  • 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].
depicted by
  • http://upload.wikimedia.org/wikipedia/commons/d/df/Illu_quiz_lung05.jpg
has exact synonym
  • secondary bronchus
  • bronchi lobaris
has related synonym
  • secondary bronchi
  • lobar bronchi
id
  • UBERON:0002183
present in taxon
  • http://purl.obolibrary.org/obo/NCBITaxon_9606
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.