part of indirect flight muscle cell tergopleural muscle cell Any muscle cell (FBbt:00005074) that is part of some tergopleural muscle (FBbt:00058907). fly_anatomy.ontology muscle cell of direct flight muscle 52 muscle cell of basalar muscle 52 Has been classified as an indirect flight muscle (Dickinson and Tu, 1997), although authors say this is arbitrary - it does not connect to a wing sclerite, but does insert within the wing hinge. Classified as a tension muscle by Wisser and Nachtigall (1984). Trimarchi and Schneiderman (1994) state that this is a single muscle bundle in D. melanogaster, but dorsal and ventral parts are referred to as tergopleural 1 and 2, respectively by O'Sullivan et al. (2018). m.an. cell pa6 cell m.anonymous cell muscle cell of 3rd & 4th basalar muscle tp cell FBbt:00003386 tp1 and tp2 cell muscle cell muscle cell of flight control muscle tergopleural muscle