六、脊神經(jīng)根
神經(jīng)病學(xué)

        脊神經(jīng)有31對(duì),即頸神經(jīng)8對(duì)、胸神經(jīng)12對(duì)、腰神經(jīng)5對(duì)、骶神經(jīng)5對(duì)和尾神經(jīng)1對(duì)。第1～7頸神經(jīng)在相應(yīng)椎骨的上緣穿出,第8頸神經(jīng)在第7頸椎下穿出,胸、腰、骶、尾神經(jīng)都在相應(yīng)椎骨的下緣穿出。脊神經(jīng)根離開(kāi)脊髓形成前、后根時(shí)即有一    （共 694 字）     [閱讀本文] >>