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本实验将~3H-Leucine 或 WGA-HRP 定位注(导)入大鼠一侧上丘内,观察了上丘传出纤维的终止部位。上丘浅层的传出纤维下行终止于二叠体旁核(以同侧核的背、腹群为主)、同侧桥核的背外侧部;其上行投射终止于内侧膝状体、膝上核、顶盖前区后核、丘脑外侧后核(以上均为两侧性,以同侧为主)、同侧的内及外侧视束核和外侧膝状体的背侧及腹侧核。另外,在两侧视束和视束交叉处均有标记颗粒。上丘中、深层的传出纤维终止于同侧中央灰质、Darkschewitsch 核、Cajal 中介核、楔形核以及对侧上丘;上行终止于内测膝状体,膝上核、顶盖前区前核、丘脑外侧后核(以上均为两侧性,以同侧为主)、束旁核、未定带、丘脑腹侧核(以上均为同侧);下行终止于同侧的有二叠体旁区和二叠体旁核,桥核的背外侧部、下丘外侧部、桥脑和延髓网状结构、下橄榄核的外侧部;终止于对侧的有二叠体旁核、桥脑和延髓网状结构内侧部、下橄榄核的内侧副核、脊髓颈段前角。
In this experiment, ~ 3H-Leucine or WGA-HRP was placed (injected) into the superior colliculus on one side of the rat to observe the termination of the fibers in the superior colliculus. The descending order of the descending fiber in the superficial upper quadrant terminates in the dorsal-lateral nucleus of the dystopian nucleus (mainly the dorsal and ventral constellations of the ipsilateral nucleus) and the dorsolateral part of the ipsilateral nucleus; its upward projection terminates in the medial geniculate knee Suprasellar nucleus, apical posterior parietal nucleus, lateral thalamic nucleus (both lateral, mainly in the same side), the ipsilateral inner and outer optic tracts and lateral geniculate nucleus dorsal and ventral nuclei . In addition, both sides of the visual tract and the beam cross-labeled particles. In the superior colliculus, the deeper afferent fibers terminate in the ipsilateral central gray matter, the Darkschewitsch nucleus, the Cajal intercalary nucleus, the wedge nucleus, and the contralateral superior colliculus; the ascending end terminates in the testicular geniculate nucleus, supraoptic nucleus, , The lateral thalamic nucleus (both sides of the above, mainly in the same side), parafascicular nucleus, undetermined band, ventral thalamic nucleus (above are the same side); Region and the paradianal parahippocampal nucleus, the dorsolateral part of the bridge nucleus, the lateral part of the inferior colliculus, the pontine and medulla oblongata network and the lateral part of the inferior olivary nucleus. The paraplegia, pons and pons The medial part of the medulla oblongata, the medial subnucleus of the olivary nucleus, the anterior horn of the cervical cervical segment.