FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term medulla sublayer M6B ID (Ontology) FBbt:00111270 (Fly Anatomy)
Definition Proximal sublayer of the medulla layer M6, proximal to layer M6A and distal to the serpentine layer (M7). It is defined by the extent of the arborization of Dm2 neurons proximally.[ FlyBase:FBrf0228639 ]
Also Known As "lateral half of the M6 layer" ; "M6L"
Comment In the literature there are two methods for describing spatial location of neurons in the visual system: distal-proximal (e.g. Fischbach and Dittrich, 1989), and lateral-medial (e.g. Ito et al., 2014), both meaning outer and inner, respectively, and refer to the distance of a structure along the visual pathway relative to the center of the brain. Currently we will adopt the classical 'distal-proximal'.
Links to External Ontologies
VFB:FBbt_00111270
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  synaptic neuropil layer
   |__medulla layer
       |__medulla sublayer M6B
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VFB:FBbt_00111270