receives synaptic input in region sends synaptic output to region receives synaptic input from neuron adult protocerebral bridge 1 glomerulus-fan-shaped body-nodulus neuron fan-shaped body layer 3 fan-shaped body layer 4 adult fan-shaped body horizontal delta neuron adult fan-shaped body horizontal delta neuron B 2022-08-19T14:55:58Z hDeltaB Adult fan-shaped body horizontal delta neuron that has both of its arbors mainly in layer 3 and the ventral part of layer 4 of the fan-shaped body (Scheffer et al., 2020; Hulse et al., 2021). There are around 19 of these cells per organism, which divide the fan-shaped body into approximately 12 columns (Hulse et al., 2021). These neurons receive input from PFN cells and track the travel direction of the fly, irrespective of its heading (Lu et al., 2022). hΔB FB3,4vD5FB3,4v fly_anatomy.ontology FBbt:00052278 hΔB VFB:FBbt_00052278