innervates adult lateral horn adult transverse antennal lobe tract posterior lateral protocerebrum transverse antennal lobe t4ALT tract 2015-12-09T13:08:57Z trans-mALT t4ALT FBbt:00111314 VFB:FBbt_00111314 fly_anatomy.ontology Transverse antennal lobe tract that bifurcates to innervate the lateral horn and the posterior lateral protocerebrum. The branch that extends to the lateral horn passes dorsal to the mushroom body pedunculus, whereas the other branch runs ventral to it. Both branches run posteriorly to the fan-shaped body.