#cartilaginous_tube__cartilaginoustube  a tube with cartilaginous walls
  supertype:  tube-shaped_structure__tube  (anatomy) any hollow cylindrical body structure
  subtype:  bronchus__bronchial_tube__bronchialtube  either of the two main branches of the trachea
     subtype:  bronchiole  any of the smallest bronchial tubes; ending in alveoli
  subtype:  windpipe__trachea  membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi

No statement uses or specializes cartilaginous_tube; click here to add one.