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 心臟受交感神經(jīng)及迷走神經(jīng)的支配,交感神經(jīng)起源于脊髓胸段1~5節(jié)的灰質(zhì)側(cè)角神經(jīng)元,在交感鏈換神經(jīng)元,再發(fā)出節(jié)后纖維到心臟。迷走神經(jīng)起源于延髓的迷走神經(jīng)背核,進入心臟后與心內(nèi)神經(jīng)節(jié)細胞發(fā)生突觸聯(lián)系,再發(fā)出節(jié)后纖維支配 (共 865 字) [閱讀本文] >>