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本实验将辣根过氧化酶(30～40％)微电泳注入30只大鼠的中缝背核(DR)后,观察其传入联系。结果如下:①电泳区以DR上半部为主的动物中,标记细胞可见于下丘脑外侧核、下丘脑弓状核、下丘脑后核、穹窿、黑质、导水管周围灰质和脑桥网状结构中。②电泳区以DR下半部为主的动物中,标记细胞可见于下丘脑外侧核、下丘脑弓状核、下丘脑背内侧核背侧部、下丘脑腹内侧棒内侧部、缰核、腹侧乳头体前核、中脑网状结构、第四脑室底室周灰质、脑桥网状结构、蓝斑、中缝大核。这表明弓状核有纤维投射到中缝背核,中缝背核传入联系是广泛的。
In this experiment, horseradish peroxidase (30 ~ 40%) was injected into the dorsal raphe (DR) of 30 rats by microelectrophoresis to observe the afferent connection. The results are as follows: (1) In the electrophoretic region, predominantly DR animals, the labeled cells can be found in the hypothalamic lateral nucleus, the hypothalamic arcuate nucleus, the hypothalamic posterior nucleus, the fornix, the substantia nigra and the periaqueductal gray, Structure. (2) In the electrophoresis zone, animals in the second half of DR showed that the labeled cells could be found in the hypothalamic lateral nucleus, the hypothalamic arcuate nucleus, the dorsal part of hypothalamic dorsomedial nucleus, the medial part of hypothalamic ventromedial rod, the habenular nucleus, Side of the papillary body anterior nucleus, midbrain reticular formation, periventricular gray matter of the fourth ventricle, pontine reticular structure, locus coeruleus, nucleus raphe magnus. This suggests that the arcuate nucleus has fibers that project into the dorsal raphe and that the afferent connection of the dorsal raphe nucleus is extensive.