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 周圍神經(jīng)由三種神經(jīng)組成,一種為腦神經(jīng),分布于頭面部;一種為脊神經(jīng),由脊髓經(jīng)椎間孔至軀干及四肢,有感覺和運(yùn)動纖維;另一種屬自主神經(jīng)系統(tǒng),有交感及副交感神經(jīng)纖維。交感神經(jīng)纖維出脊髓后經(jīng)白交通支至交感神經(jīng)節(jié),再經(jīng)灰交通支 (共 879 字) [閱讀本文] >>