FB2026_03 , released September 17, 2026
CV Term Report
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Term adult Eh neurosecretory neuron ID (Ontology) FBbt:00049192 (Fly Anatomy)
Definition Neuron of the adult brain that expresses eclosion hormone (Eh). It develops from the larval Eh neuron (Horodyski et al., 1993). A single pair of these neurons is present in the pharate adult, and is required for the 'lights on response' in eclosion frequency (McNabb and Truman, 2008). Eh expression is strongly reduced after eclosion (McNabb and Truman, 2008). Its cell body is found in the anterior superior medial protocerebrum (SMP) and its arborizations are visible in the medial SMP, the median bundle, around the esophageal foramen and in the dorsal subesophageal zone (Selcho et al., 2018). It has postsynapses and peptide release sites in these locations, but no apparent presynapses (Selcho et al., 2018). Descending fibers enter the cervical connective and other fibers leave the central brain along the esophagus to innervate the hypocerebral ganglion and corpus cardiacum (Selcho et al., 2018).[ FlyBase:FBrf0058431 FlyBase:FBrf0205351 FlyBase:FBrf0238423 ]
Also Known As"adult eclosion hormone neuron" ; "adult EH neuron" ; "adult EH-rSMPma neuron" (for all, see Synonyms field below)
CommentExpresses a CCAP-GAL4, but does not immunostain for CCAP at the pharate adult stage (Selcho et al., 2018).
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VFB:FBbt_00049192
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Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 adult Eh neurosecretory neuron (all annotations which use CV term, excluding "NOT" statements)
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peptidergic neuron
 |__eclosion hormone neuron_____________
 |__adult peptidergic neuron____________|
endocrine neuron                        |
 |__eclosion hormone neuron_____________|
adult neuron                            |
 |__adult descending neuron_____________|
 |__adult peptidergic neuron____________|
adult neurosecretory neuron             |
 |__neurosecretory cell of adult brain__|
neurosecretory cell of brain            |
 |__neurosecretory cell of adult brain__|
CNS neuron                              |
 |__supraesophageal ganglion neuron_____|
adult CNS neuron                        |
 |__neurosecretory cell of adult brain__|
                                        adult Eh neurosecretory neuron  1 rec.
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Is a supraesophageal ganglion neuron
adult descending neuron
eclosion hormone neuron
neurosecretory cell of adult brain
adult peptidergic neuron
Develops from larval Eh neurosecretory neuron
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VFB:FBbt_00049192