FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term medulla sublayer M3A ID (Ontology) FBbt:00111267 (Fly Anatomy)
Definition Distal sublayer of the medulla layer M3, proximal to layer M2. It is defined by the extent of the arborization of Dm3 neurons.[ FlyBase:FBrf0228639 ]
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 medial-lateral (e.g. Ito et al., 2014), both meaning outer and inner, 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_00111267
Annotations
Records annotated with this term OR any of its CHILD TERMS
No relevant records available
Records annotated with this exact term (annotations to child terms are NOT included)
No relevant records available
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
No relevant statements available
Spanning Tree (Parents/Children)
Only view relationship:
  synaptic neuropil layer
   |__medulla layer
       |__medulla sublayer M3A
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a medulla layer
Part of medulla layer M3
hide Synonyms & Secondary IDs
Synonyms
Secondary IDs
hide External Crossreferences & Linkouts
VFB:FBbt_00111267