continuous with develops from embryonic/larval tracheal section embryonic/larval tracheal dorsal trunk embryonic/larval dorsal tracheal branch larval dorsal branch FBbt:00000265 small dorsal commissure fly_anatomy.ontology dorsal trachea Embryonic/larval trachea that branches dorsally from the dorsal trunk. It tracheates the dorsal epidermis and dorsal vessel. Each dorsal branch connects to the contralateral branch of the same tracheal metamere via the dorsal anastomosis. FBbt:00005582 inner segmental trachea dorsal tracheal branch primordium primary tracheal branch