A.脊髓 B.腦室及導(dǎo)水管周圍灰質(zhì) C.蘭斑核 D.延髓孤束核 E.外周痛覺(jué)神經(jīng)末梢
A.惡心、嘔吐 B.稀便腹瀉 C.低血壓 D.嗜睡、頭昏 E.戒斷癥狀
A.對(duì)慢性疼痛效果差 B.慢性疼痛時(shí)嗎啡明顯抑制呼吸 C.維持時(shí)間短 D.易引發(fā)體位性低血壓 E.易成癮