part of giant sensillum of the dorsal radius Note that several references use the term 'giant sensillum of the radius' (e.g. Palka et al., 1979), and others use the term 'giant sensillum of the dorsal radius' (e.g. Huang et al., 1991). For consistency, we adopt this latter usage. giant sensillum of the radius VFB:FBbt_00004083 giant sensillum of radius GSR FBbt:00004083 sensillum campaniformium of dorsal radius Sc1 wing nerve GSR fly_anatomy.ontology giant sensillum of the distal radius Large, singly-innervated campaniform sensillum on the posterior face of the distal radius of the adult wing. It is a large circular sensillum, with a high profile and a distinct discontinuity between the dome and socket. It is around 9 micrometers in diameter. campaniform sensillum of dorsal radius distal radius