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 各節(jié)段血管的升支與降支沿神經(jīng)外膜縱行吻合,形成神經(jīng)外膜血管。神經(jīng)外膜血管縱貫神經(jīng)的全長,手術(shù)中清晰可辨,是神經(jīng)斷裂傷后對位縫合的良好標(biāo)志。由外膜血管發(fā)出短的橫支或斜支,呈弓狀在神經(jīng)束的表面越過,行向神經(jīng)深部,延 (共 116 字) [閱讀本文] >>