continuous with adult tracheal section adult tracheal dorsal trunk adult tracheal lateral trunk adult tracheal transverse connective dorsal segmental trachea Transverse tracheal branch of the adult. It connects the lateral trunk and the dorsal trunk at seven different locations. At the level of the second pair of spiracles, these connectives are much shorter and stouter than the six abdominal connectives. FBbt:00003041 fly_anatomy.ontology adult spiracular tracheal branch tracheal branch