Patrick G W, Haines D E
J Morphol. 1982 May;172(2):209-22. doi: 10.1002/jmor.1051720207.
Projections from the trigeminal complex to paramedian lobule (PML) were studied in the tree shrew (Tupaia glis) by means of retrograde transport of horseradish peroxidase (HRP). Neurons which project to both dorsal and ventral folia of PML are located primarily in those areas of the trigeminal nuclear complex interpreted as nucleus interpolaris (Vi) and caudal areas of the nucleus oralis (Vo). The majority of HRP-labeled neurons lie in ventral and ventrolateral regions of Vi/Vo. No HRP-reactive cells are present in the principal (Vp), mesencephalic, or motor nuclei nor in nucleus caudalis or rostral portions of oralis. The majority of trigeminocerebellar (TC) cells are found in ipsilateral Vi; however, sparse numbers of labeled somata are present in this subnucleus on the contralateral side. Within Vi/Vo, small fusiform and medium-and large-sized multipolar neurons contain HRP-reaction product. Large multipolar cells are found primarily in ventrolateral portions of Vi/Vo, while medium and small neurons are scattered throughout the ventral half of the nucleus. Small-sized neurons are also present dorsally within Vi/Vo. Axons of labeled TC cells course laterally through the spinal trigeminal tract, enter medial aspects of the restiform body, and arch dorsally into the cerebellum.
通过辣根过氧化物酶（HRP）逆行运输法，在树鼩（Tupaia glis）中研究了三叉神经复合体向正中旁小叶（PML）的投射。投射至PML背侧和腹侧小叶的神经元主要位于三叉神经核复合体中被认为是极间核（Vi）的区域以及口核（Vo）的尾侧区域。大多数HRP标记的神经元位于Vi/Vo的腹侧和腹外侧区域。在主核（Vp）、中脑核或运动核以及尾侧核或口核的吻侧部分均未发现HRP反应性细胞。大多数三叉神经小脑（TC）细胞位于同侧的Vi；然而，在对侧该亚核中也存在少量标记的胞体。在Vi/Vo内，小型梭形以及中型和大型多极神经元含有HRP反应产物。大型多极细胞主要位于Vi/Vo的腹外侧部分，而中小型神经元则散布于该核腹侧半部。小型神经元在Vi/Vo的背侧也有存在。标记的TC细胞轴突横向穿过脊髓三叉神经束，进入绳状体的内侧部分，并背侧弯曲进入小脑。
