Gregory K M, Giolli R A
Exp Brain Res. 1985;60(3):501-8. doi: 10.1007/BF00236935.
The neurons of the medial terminal nucleus (MTN) of the accessory optic system (AOS) have been studied in the rat, rabbit and cat in Golgi-Cox and Golgi-Kopsch impregnated brain sections. The present anatomical findings permit a division of the MTN of these species into dorsal and ventral components (MTNd, MTNv), in agreement with other investigations. The MTNd contains predominantly linear-bipolar and linear-multipolar shaped neurons with cell bodies that measure in the range of 25-50 microns. These neurons have 2 to 4 primary dendrites which, along with their smaller dendritic branches, are oriented in the plane of the long axis of the MTN (i.e. from ventromedial to dorsolateral). These linear-bipolar and linear-multipolar cells represent 70-80% of the neurons of the MTNd as seen in the Golgi impregnated sections. The remaining 20-30% of the MTNd neurons are nearly all multipolar in shape with somata measuring in the range of 15-25 microns. An occasional multipolar neuron is larger, has a soma that measures around 30-60 microns and has dendrites which extend outward from the cell body to cover large areas of the MTNd. There was considerable extension of the dendrites of MTNd neurons into the MTNv; however, the dendrites of MTNd neurons were not observed extending into the adjacent substantia nigra (SN) or ventral tegmental area (VTA) of Tsai (1925). Conversely, the dendrites of neurons in the neighboring SN and VTA course along the borders of the MTN but only occasionally extend into the MTN.(ABSTRACT TRUNCATED AT 250 WORDS)
在大鼠、兔和猫的大脑切片中，利用高尔基-考克斯法和高尔基-科普施法染色，对附属视觉系统（AOS）内侧终核（MTN）的神经元进行了研究。目前的解剖学研究结果表明，与其他研究一致，这些物种的MTN可分为背侧和腹侧部分（MTNd、MTNv）。MTNd主要包含线性双极和线性多极神经元，其细胞体大小在25至50微米之间。这些神经元有2至4个初级树突，连同其较小的树突分支，在MTN长轴平面内定向（即从腹内侧到背外侧）。在高尔基染色切片中，这些线性双极和线性多极细胞占MTNd神经元的70 - 80%。MTNd其余20 - 30%的神经元几乎都是多极的，其胞体大小在15至25微米之间。偶尔会有一个较大的多极神经元，其胞体大小约为30至60微米，树突从细胞体向外延伸，覆盖MTNd的大片区域。MTNd神经元的树突大量延伸至MTNv；然而，未观察到MTNd神经元的树突延伸至相邻的黑质（SN）或蔡氏腹侧被盖区（VTA）。相反，相邻SN和VTA中神经元的树突沿着MTN的边界走行，但仅偶尔延伸至MTN。（摘要截于250字）
