脊神經(jīng)自脊髓發(fā)出,經(jīng)椎間孔離開椎管,分布于軀干和四肢。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)。每一個(gè)脊神經(jīng)由前根和后根在椎間孔處合成。前根屬運(yùn)動(dòng)性,由脊髓前角和側(cè)角細(xì)胞的軸突組成 (共 2451 字) [閱讀本文] >>
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 脊神經(jīng)自脊髓發(fā)出,經(jīng)椎間孔離開椎管,分布于軀干和四肢。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)。每一個(gè)脊神經(jīng)由前根和后根在椎間孔處合成。前根屬運(yùn)動(dòng)性,由脊髓前角和側(cè)角細(xì)胞的軸突組成 (共 2451 字) [閱讀本文] >>