part of part of has part has part proximally connected to Homo sapiens system lobe of lung cartilage of bronchus segmental bronchus bronchus smooth muscle lung mesenchyme intrapulmonary bronchus bronchus submucosal gland subsegmental bronchus 2023-03-14T14:54:15Z intrasegmental bronchus UBERON:8600009 Like other bronchi, the walls of a subsegmental bronchus contain plates of cartilage. Notably, the cartilage plates become smaller and more widely dispersed with each branching. Branch of conducting airway between a segmental bronchus and a preterminal bronchiole. bronchopulmonary segment Aleix Puig-Barbé Gloria S Pryhuber