FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term larval A1-7-innervating VL1 motor neuron ID (Ontology) FBbt:00047470 (Fly Anatomy)
Definition Motor neuron that innervates ventral longitudinal muscle 1 (VL1; muscle 12), in one of larval abdominal segments A1 to A7, via type Ib boutons (Hoang and Chiba, 2001). Its cell body is located contralateral to the muscle it innervates, the next anterior neuromere, and it fasciculates with the ISNb nerve branch (Hoang and Chiba, 2001; Kohsaka et al., 2012). During metamorphosis, VL1 muscles in abdominal segments 1 and 2 develop into temporary eclosion muscles, with some remodeling of the corresponding VL1 motor neurons, which become adult persistent 12-Ib motor neurons (Banerjee et al., 2016). The VL1 neurons found in (at least) abdominal neuromeres 2-4 die during metamorphosis (Banerjee et al., 2016).[ FlyBase:FBrf0132289 FlyBase:FBrf0218115 FlyBase:FBrf0234013 ]
Also Known As "A1-7 MN12-Ib"
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VFB:FBbt_00047470
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larval abdominal intersegmental nerve neuron
 |__larval A1-7-innervating ISN motor neuron__
embryonic/larval motor neuron                 |
 |__abdominal segment motor neuron____________|
 |__larval A1-7-innervating ISN motor neuron__|
type Ib motor neuron                          |
 |__larval VL1 motor neuron___________________|
larval internal muscle motor neuron           |
 |__larval VL1 motor neuron___________________|
                                              larval A1-7-innervating VL1 motor neuron
                                               |__larval VL1 motor neuron of abdominal 1 neuromere
                                               |__larval VL1 motor neuron of abdominal 2 neuromere
                                               |__larval VL1 motor neuron of abdominal 3 neuromere
                                               |__larval VL1 motor neuron of abdominal 4 neuromere
                                               |__larval VL1 motor neuron of abdominal 5 neuromere
                                               |__larval VL1 motor neuron of abdominal 6 neuromere
                                               |__larval VL1 motor neuron of metathoracic neuromere
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Is a abdominal segment motor neuron
larval VL1 motor neuron
larval A1-7-innervating ISN motor neuron
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Synonyms
  • "A1-7 MN12-Ib" EXACT
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VFB:FBbt_00047470