has part has part has_part characteristic of part of has modifier abnormal bronchus morphology abnormal bronchial cartilage morphology MP:0010988 2011-03-30T04:07:07Z csmith any structural anomaly of the hyaline cartilaginous structures that support the bronchi, present as irregular rings in the larger bronchi (and not as regular as in the trachea), and as small plates and islands in the smaller bronchi; as the branching continues through the bronchial tree, the amount of hyaline cartilage in the walls decreases until it is absent in the smallest bronchioles MPheno.ontology morphology abnormal cartilage of bronchus