part of part of extends_fibers_into cranial nerve II optic chiasma chiasma opticum TAO:0000556 chiasma chiasma nervorum opticorum DMBA:17783 NCIT:C90609 DHBA:10644 MBA:117 BAMS:ox UBERON:0000959 BM:Tel-OCX Wikipedia:Optic_chiasm EHDAA2:0001302 MA:0001098 A decussation of the diencephalon where the fibers of the optic nerve cross. MESH:D009897 GAID:832 EHDAA:10227 ZFA:0000556 AAO:0010622 BIRNLEX:1416 optic chiasm (Rufus of Ephesus) BAMS:DC EMAPA:17603 decussation of optic nerve fibers optic chiasm VHOG:0000190 SCTID:244453006 BAMS:och XAO:0004071 FMA:62045 HBA:9310 BAMS:OC diencephalon optic tract neural decussation decussation of diencephalon