abnormal bronchioalveolar stem cell morphology decreased bronchioalveolar stem cell number 2011-02-14T04:12:48Z MP:0010830 MPheno.ontology csmith decreased BASC number reduced BASC number reduced bronchioalveolar stem cell number reduced numbers of a respiratory stem cell found at the junction of the terminal (conductive) bronchiole and the respiratory bronchiole, which gives rise to alveolar cell types and Clara cells in response to lung injury