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 (一)脊神經(jīng)脊神經(jīng)共31對,即頸神經(jīng)8對、胸神經(jīng)12對、腰神經(jīng)5對,骶神經(jīng)5對和尾神經(jīng)1對。每對神經(jīng)均以前后根與脊髓相連,前、后根在椎間孔附近合成脊神經(jīng),經(jīng)椎間孔離開椎管。當(dāng)構(gòu)成椎間孔前壁的椎體后緣增生(在頸椎特別是鉤突增 (共 5030 字) [閱讀本文] >>