part of part of has part has part contributes to morphology of composed primarily of tracheobronchial chondrocyte cartilage of bronchus UBERON:0001956 NCIT:C49209 bronchial cartilage MA:0001835 EMAPA:35192 bronchial trunk cartilage FMA:62649 bronchial cartilage ring cartilagines bronchiales bronchi cartilage bronchus cartilage cartilage of bronchial trunk cartilage of bronchi 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[MP]. SCTID:278980009 hyaline cartilage tissue bronchus lower respiratory tract cartilage cartilage element