intersects midsagittal plane of nervous system axon tract nervous system commissure white matter commissure NLX:110 TADS:0000201 Wikipedia:Commissure NLXANAT:20090513 FMA:83906 NCIT:C32349 neuraxis commissure Axon tract that crosses the midline of the central nervous system[NIF, modified]. In the context of Drosophila refers to a broad band of axons connecting equivalent neuropils each side of the brain[FBbt]. UBERON:0001020 commissure commissure of neuraxis *not* the same as FMA:76741 Commissure