Ryu K, Watanabe K, Kawana E
Acta Anat (Basel). 1983;116(1):26-36. doi: 10.1159/000145722.
The trigeminal nerve has motor, intermediate and sensory roots in the dog. The motor root is composed of two bundles: the medial and ventral. The ventral motor root emerges from the pons, forming the common root with the sensory, and then is separated from it to run along with the medial motor root which separately exits from the pons as the ordinary motor root. The mesencephalic root fibers of the trigeminal nerve are investigated in the dog, using the myelin sheath degeneration technique. Degenerated fibers are observed numerously in the ventral motor root and moderately in the medial motor root, and are traced to the mandibular branch of the trigeminal nerve. Some degenerated fibers are observed in the sensory root and they seem to pass through the Gasserian ganglion to enter the ophthalmic and maxillary branches. No degenerated fibers are found in the intermediate root.
在犬类中，三叉神经有运动根、中间根和感觉根。运动根由两束组成：内侧束和腹侧束。腹侧运动根从脑桥发出，与感觉根形成共同根，然后与之分离，与内侧运动根一起走行，内侧运动根作为普通运动根从脑桥单独发出。利用髓鞘变性技术在犬类中对三叉神经的中脑根纤维进行了研究。在腹侧运动根中观察到大量变性纤维，在内侧运动根中观察到中等数量的变性纤维，并追踪至三叉神经的下颌支。在感觉根中观察到一些变性纤维，它们似乎穿过半月神经节进入眼支和上颌支。在中间根中未发现变性纤维。
