has soma location has synaptic IO in region receives synaptic input in region sends synaptic output to region adult optic lobe neuron lobula layer 2 lobula layer 3 lobula layer 4 lobula columnar neuron LC21 optic glomerulus cell body rind of adult lobula optic lobe wide-field columnar neuron lobula layer 5A lobula layer 5B lobula columnar neuron LC21 2017-04-28T16:08:36Z Lobula columnar neuron whose cell body lies on the dorsal posterior surface of the lobula (Wu et al., 2016). It has its main dendritic arbors in lobula layers boundaries 2/3, 3/4, 5A/5B and 5B/6, with most synapses around layers 2/3 (Wu et al., 2016; Tanaka and Clark, 2022). Presynaptic sites are observed in layers 3/4 and along the boundary of 5B (Wu et al., 2016). Its arbors span approximately 30 optic columns, overlapping with other LC21 cells (Wu et al., 2016). It projects to an elongated glomerulus in an intermediate position between the dorsal and ventral groups of optic glomeruli of the PVLP (Wu et al., 2016). There are around 87 cells of this type (Wu et al., 2016). FBbt:00111756 LC21 LC21 Pre- versus postsynaptic innervation assessed with a presynaptic marker (synaptotagmin-HA driver) (Wu et al., 2016). fly_anatomy.ontology VFB:FBbt_00111756