part of part of corticospinal tract pyramidal decussation pyramidal decussation BAMS:pyx decussation of pyramidal tract fibers motor decussation of medulla pyramidal tract decussation corticospinal decussation decussation of corticospinal tract BM:Me-PyX DMBA:17760 Wikipedia:Decussation_of_pyramids HBA:12965 FMA:72633 MBA:198 decussation of the pyramidal tract decussation of pyramids Part of medulla comprising a white matter structure containing nerve fibers of the pyramidal tract crossing from one side of the brain to the other (MM). UBERON:0002755 BAMS:pyd SCTID:369058001 DHBA:12772 pyramidal decussation (pourfour du petit) BIRNLEX:1594 motor decussation decussation of pyramids of medulla neural decussation white matter of medulla oblongata