part of fasciculates with has synaptic IO in region larval brain embryonic/larval antennal lobe embryonic/larval antennal lobe tract larval serotonergic IP neuron serotonergic IP1 neuron 1 larval serotonergic IP1 neuron 1 2014-11-13T10:07:48Z larval contralaterally innervating serotonin immunoreactive deutocerebral interneuron VFB:FBbt_00110939 larval CSDn Larval serotonergic IP neuron whose cell body is located anteriorly to the dorsal basolateral protocerebrum. A primary neurite projects to and innervates the antennal lobe. Another process projects dorsally to innervate the lateral and medial region of the posterior brain, including the region around the mushroom body. A single neurite crosses the midline and arborizes in the contralateral antennal lobe. larval CSD fly_anatomy.ontology larval CSD neuron larval IP1-1 FBbt:00110939 larval serotonergic IP1-1 neuron larval CSD interneuron