part of adult mushroom body mushroom body spur spur of adult mushroom body 2013-10-09T16:48:14Z FBbt:00110640 knee of adult mushroom body Synaptic neuropil domain of the adult mushroom body, that is a small protrusion, lateral to the pedunculus divide. It is formed either by the gamma Kenyon cells that run through the lateral part of the pedunculus divide and project to the gamma lobe. adult mushroom body heel adult spur heel of adult mushroom body fly_anatomy.ontology VFB:FBbt_00110640 SPU