hg2_MN [FBbt_00048111]

Motor neuron that innervates the internal muscle of the fourth axillary 58b (hg2), ipsilaterally (Ehrhardt et al., 2023). Within the ventral nerve cord, it arborizes in the dorsal mesothoracic neuropil, including the wing neuropil, with greater innervation of the contralateral side (O’Sullivan et al., 2018; Ehrhardt et al., 2023). In the male, it plays a role in pulse and sine song generation (O’Sullivan et al., 2018; Ehrhardt et al., 2023).

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hg2_MN

ID: FBbt_00048111

Adult Motor neuron Nervous system

Motor neuron that innervates the internal muscle of the fourth axillary 58b (hg2), ipsilaterally (Ehrhardt et al., 2023). Within the ventral nerve cord, it arborizes in the dorsal mesothoracic neuropil, including the wing neuropil, with greater innervation of the contralateral side (O'Sullivan et al., 2018; Ehrhardt et al., 2023). In the male, it plays a role in pulse and sine song generation (O'Sullivan et al., 2018; Ehrhardt et al., 2023).

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## Classification

direct flight muscle motor neuron

Relationships

bearer of: bilateral
has synaptic IO in region: wing neuropil
sends synaptic output to cell: muscle cell of wing axillary muscle hg2

Alternative Names

Synonym	Scope	Reference
hg2 MN	exact synonym	Berg et al., 2025
hg2 MN	exact synonym	O’Sullivan et al., 2018
hg2 MN	exact synonym	doi_10_7554_eLife_97766_1
iv2	exact synonym	Bates et al., 2025
wing axillary muscle iv2 motor neuron	exact synonym	Bates et al., 2025
hg2_MN	exact synonym	Ehrhardt et al., 2023
wing axillary muscle iv2 motor neuron	exact synonym

List all available images of hg2_MN (7 total)

Thumbnail	Name	Tags
	TBD (MANC:22584)	Motor_neuron, lineage_16_NB1-1, Adult
	TBD (MANC:22584)	Motor_neuron, lineage_16_NB1-1, Adult
	TBD (MANC:22584)	Motor_neuron, lineage_16_NB1-1, Adult
	hg2 MN_L (MaleCNS:804131)	Motor_neuron, lineage_16_NB1-1, Adult
	hg2 MN_R (MaleCNS:803891)	Motor_neuron, lineage_16_NB1-1, Adult