关键词: 延髓内脏带;细胞构筑;猫

    摘 要:目的 证明延髓内脏带(MVZ)在哺乳类存在的普遍性，为进一步的机能探讨提供形态学基础. 方法 冰冻切片、石蜡切片行Nissl染色，观察猫MVZ的细胞构筑. 结果 该带在猫存在于从锥体交叉至闩以上2.9mm，吻尾长约7.0mm，脑干横切面上宽0.4～2.5mm的弧形带状区，由背内侧的迷走孤束复合体和最后区、腹外侧的疑核和延髓腹外侧区，以及位于二者之间的中间网状结构所构成. 结论 猫也有类似大鼠的延髓内脏带结构，在形态学上表现为一独立结构，参与内脏活动的调节.

    Cytoarchitecture of the medullary visceral zone of the cat

    GE Xu ，ZHAO Zhi-Jing ，RAO Zhi-Ren，YANG Zhi-Jun

    1 Institute of Neurosciences of Chinese PLA，Faculty of Preclinical Medicine，2 Department of Cardiova-sology，Xijing Hospital，Fourth Military Medical University，Xi'an710033，China

    Keywords:medullary visceral zone;cytoarchitecture;cat

    Abstract:AIM To prove the universality of existence of the medullary visceral zone(MVZ)in mammals and provide the morphological evidence for further physiological studies.METHODS Cytoarchitecture of the MVZ of the cat was ex-amined by using Nissl staining method on the frozen sections and paraffin sections.RESULTS The MVZ was an arc band with width of0.4～2.5mm on cross section of medulla ob-longata and the rostro-caudal length was about7.0mm from the level of pyramid decussation to the level of2.9mm ......