abnormal respiratory epithelium morphology abnormal airway basal cell morphology 2011-05-11T04:13:01Z MP:0011113 MPheno.ontology any structural anomaly of a long-lived multipotent stem cell of the pseudostratified airway epithelium which is restricted to the tracheal epithelium in mice; airway BCs have been shown to be capable of self renewal, give rise to secretory (Clara) cells and ciliated cells, and play important roles both in epithelial homeostasis and in pathological airway remodeling csmith