Diseases of the nervous system .. . Fig. 89.—Section in the Region of tuk Ohicix of the Abducexs. (After Edinger.) The ^E8TIIiULAR Nerve the fibrffi arcuata^ interna\ therefore rises from the nuclei of the posteriorcolumns (Fig. 87). To these are added the fil)ers from the lateral columnbasic bundles of the spinal cord. In the tegmentum it passes below thecorpora quadrigemina to the inter-brain, in the thalamus, where its ventral Fissura mediana posterior iFuniculus gracilisFuniculus cuneatus — Substantia gelatinosa -(Roiandi)Fasciculus cerehrospinalis.—(pyrainidalis) lateralis Canalis central
Diseases of the nervous system .. . Fig. 89.—Section in the Region of tuk Ohicix of the Abducexs. (After Edinger.) The ^E8TIIiULAR Nerve the fibrffi arcuata^ interna\ therefore rises from the nuclei of the posteriorcolumns (Fig. 87). To these are added the fil)ers from the lateral columnbasic bundles of the spinal cord. In the tegmentum it passes below thecorpora quadrigemina to the inter-brain, in the thalamus, where its ventral Fissura mediana posterior iFuniculus gracilisFuniculus cuneatus — Substantia gelatinosa -(Roiandi)Fasciculus cerehrospinalis.—(pyrainidalis) lateralis Canalis centralis—* Vena spinalis interna Columna anterior. Basisy ^ CervixCaput Columnseposterioris — Radix spinalis n. accessorii Processus reticularis ^ Decussatio pyramidumFissura mediana anterior Fig. 90.—Transverse Section through the Pyramidal Decussation. (After Toldt.)8 94 HISTOLOGY OF THE CENTRAL NERVOUS SYSTEM nucleus breaks up; this is, therefore, one of the ends of the second sensoryneuron. The lateral (lower) lemniscus probably contains the fibers of all sensorynerve nuclei (glosso-pharyngeal, vagus, acousticus and trigeminal nerves) Vena spinalis interna FibrjE arcuatae internae — Columna anterior—Fissura mediana anterior Pyram
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