an intersection or crossing of two tracts in the form of the letter X
造句
用作名詞(n.)
There is mass effect with superior displacement of the optic chiasm. 雙側(cè)視交叉上抬。
Visual field changes suggested a mass within the left optic nerve extending its compression across the chiasm and encroaching on the left optic tract. 連續(xù)的視野變化顯示視傳導(dǎo)路徑前部有腫瘤壓迫現(xiàn)象，并且向原先定位的左側(cè)視神經(jīng)迅速地朝視交叉和視徑移轉(zhuǎn)。