serotonergic abdominal giant (male) neuron 1 2019-08-30T12:34:02Z fly_anatomy.ontology VFB:FBbt_00048428 FBbt:00048428 May be equivalent to or overlap with adult dorsal posterior Ilp7 (male) neuron - FBbt:00111305 - https://orcid.org/0000-0002-1373-1705. sAbg-1 Serotonergic abdominal giant (male) neuron that is also dopaminergic. There are approximately four of these cells per organism and they play a role in regulating copulation duration (Jois et al., 2018). adult dopaminergic neuron of ventral nerve cord serotonergic abdominal giant (male) neuron