FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term type II motor neuron ID (Ontology) FBbt:00007681 (Fly Anatomy)
Definition Neuron that is synapsed to a muscle via type II terminals. These terminals are characterized by the presence of dense core vesicles that store and release octopamine and the absence of T-bars and clear vesicles (Stocker et al., 2018). Type II motor neurons can be found in the adult and in the larva (Stocker et al., 2018).[ FlyBase:FBrf0238580 ]
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VFB:FBbt_00007681
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 type II motor neuron (all annotations which use CV term, excluding "NOT" statements)       7
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aminergic neuron
 |__octopaminergic neuron__
efferent neuron            |
 |__motor neuron___________|
                           type II motor neuron  40 rec.
                            |__adult type II motor neuron
                            |   |__adult octopaminergic abdominal somatic muscle motor neuron
                            |   |__adult octopaminergic frontal pulsatile organ muscle motor neuron
                            |   |__adult octopaminergic heart muscle motor neuron
                            |   |__adult octopaminergic leg muscle motor neuron
                            |   |__adult octopaminergic mesothoracic leg muscle motor neuron
                            |   |__adult octopaminergic metathoracic leg muscle motor neuron
                            |   |__adult octopaminergic proboscis muscle motor neuron
                            |   |__adult octopaminergic prothoracic leg muscle motor neuron
                            |   |__adult octopaminergic wing muscle motor neuron
                            |   |__type II motor neuron of oviduct/uterus
                            |   |__type II motor neuron of sperm storage organ
                            |__larval VUM motor neuron 33 rec.
                                |__larval dorsal VUM motor neuron(+) 4 rec.
                                |__larval lateral VUM motor neuron(+) 3 rec.
                                |__larval mesothoracic VUM motor neuron
                                |__larval metathoracic VUM motor neuron
                                |__larval prothoracic VUM motor neuron
                                |__larval ventral VUM motor neuron(+) 4 rec.
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Is a motor neuron
octopaminergic neuron
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VFB:FBbt_00007681