有一位病人接受了腹外側椎側索截斷手術(ventrolateral cordotomy)後,其右側腿的疼痛情形顯著減輕,這效果最有可能是因為手術影響那一條神經路徑?
A左側脊髓背柱路徑(left dorsal column)
B左側腹外側脊髓丘腦徑(left ventrolateral spinothalamic tract)正確答案
C右側腹外側脊髓丘腦徑(right ventrolateral spinothalamic tract)
D右側內側丘徑(right medial lemniscal pathway)
答案與詳解
