sends synaptic output to cell direct flight muscle motor neuron muscle cell of wing axillary muscle hg4 wing axillary muscle hg4 motor neuron 2024-01-04T12:28:23Z VFB:FBbt_00052728 hg4_MN FBbt:00052728 hg4_MN fly_anatomy.ontology wing axillary muscle iv4 motor neuron Motor neuron that innervates the external muscle of the fourth axillary hg4 (Ehrhardt et al., 2023). Ehrhardt et al. (2023) say there is a 1:1 correspondence of MNs to muscles (except for tpn), implying the existence of this neuron, but they do not have an image or description.