猫のMeynert束についての実験的研究

概要

論文の詳細を見る
Meynert's bundle (tr. habenulopeduncularis) is one of the important pathways of the limbic system to the brain stem. The results of our study on the course and termination of Meynert's bundle in cats by the Nauta method are as follows. 1. Meynert's bundle consists of fine and coarse fibers. 2. The fine fibers are mainly found in the middle of the bundle in its course toward the mesencephalic basis, while the coarse fibers chiefly in its peripheral part. In some cases, however, considerably many coarse fibers are situated in the middle of the bundle mingling with the fine fibers. 3. When the bundle reaches the mesencephalic basis, the fine and coarse fibers separate from each other in space. 4. By the view generally accepted at present the whole fibers of Meynert's bundle end in the interpeduncular nucleus. But by our findings only the fine fibers terminate, in this nucleus. 5. The coarse fibers descend through the tegmental portion just dorsolateral to the interpeduncular nucleus and reach their destination in the superior central nucleus of Bechterew mostly on the ipsilateral side to lesions. 6. Some of the coarse fibers end, furthermore, in the nucleus centrum medianum soon after they leave the habenular nucleus.
千葉大学の論文
1960-11-28