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将HRP或WGA-HRP注入大白鼠一侧的嗅结节.凡注射涉及嗅结节的多形层者均在注射侧的黑质致密部—A8、A9区出现标记细胞.标记细胞主要位于黑质致密部的内侧.其数量由内向外递减.黑质致密部内的标记细胞以吻侧1/3段最多,中1/3段次之.尾1/3段最少.在WGA-HRP注射区涉及嗅结节的多形层的各例中.除看到黑质致密部中的标记细胞外.还可见密集的成串珠样和点状的标记终末.黑质致密部内的标记终末分布于吻尾方向全长和各平面全宽.但吻2/3段较尾1/3段标记终末密集.内侧部较外侧部的标记终末密集.当注射区中心在嗅结节内侧部时,标记终末的数量多于注射区中心位于外侧部时的标记终末数量.说明投向黑质致密部的纤维主要发自嗅结节内侧部.
The HRP or WGA-HRP was injected into the olfactory nodules on the side of the rats, and all the polymorphic layers injected into the olfactory nodules showed labeled cells in the substantia nigra compact-A8 and A9 regions on the injection side.The labeled cells mainly located in the black The number of labeled cells in substantia nigra compact zone was highest in 1/3 of the kiss side, followed in the middle of 1/3 zone, and the lowest in the tail 1/3 zone.In the WGA-HRP injection zone In each case of the pleomorphic layer involving the olfactory nodules, in addition to the marked cells in the substantia nigra pars compacta, dense bead-like and punctate marker termini were also seen. The total length of the kiss tail and the full width of each plane, but the kiss 2/3 section of the tail than the last 1/3 mark the end of the dense inner part of the mark than the outer part of the dense When the injection zone in the medial sniffing nodules , The number of terminal markers is more than the number of terminal markers when the center of the injection zone is located on the outer side, indicating that the fibers that are directed towards the substantia nigra pars compacta mainly originate from the inside of the olfactory nodules.