part of adult abdomen adult tracheal section adult abdominal superficial tracheal branch FBbt:00003082 superficial trachea fly_anatomy.ontology Tracheal branch of the adult abdomen that arises directly from the spiracular trachea or from the lateral trunks near the spiracular junction. There is generally one dorsal and one ventral superficial trachea in each spiracle-bearing segment. tracheal branch