. A treatise on nervous and mental diseases, for students and practitioners of medicine. s, and the pyramids of themedulla oblongata to the point of decussation. Usually most ofthese motor fibres pass over to the opposite side of the cord to thelateral pyramidal column, whilst a certain number remain upou thesame side to pass down in the anterior pyramidal column. Flechsighas shown that the proportion of fibres decussating is extremely vari-able, and I have had four cases in which there was paralysis on thesame side as the cerebral lesion, and therefore presumably slight decus-sation or none a
. A treatise on nervous and mental diseases, for students and practitioners of medicine. s, and the pyramids of themedulla oblongata to the point of decussation. Usually most ofthese motor fibres pass over to the opposite side of the cord to thelateral pyramidal column, whilst a certain number remain upou thesame side to pass down in the anterior pyramidal column. Flechsighas shown that the proportion of fibres decussating is extremely vari-able, and I have had four cases in which there was paralysis on thesame side as the cerebral lesion, and therefore presumably slight decus-sation or none at all. From these anterior and lateral pyramidalcolumns the motor fibres pass into the anterior horn of the spinal ANATOMY. 57 cord, whence they emerge through the motor nerves to join with thesensory fibres from the posterior columns, and after this junction themotor fibres pass on through the peripheral nerve to the muscles,to terminate either in an end-plate or in a nerve plexus. Fig. 37. /INTERIOR HORN ANTERIOR PYRAMIDAL FUNDAMENTALCOL COWERS COL LATERAL ^PYRAMIDALCOL. POSTERIOR HORN. SPIT2KA-LISSAUER COL. \ COLUMN OF GOLL COLUMN OF BURDACH Columns of the spinal cord, according to our present knowledge. The sensory columns of the cord are numerous. They consist ofthe columns of Goll, the columns of Burdach, the Spitzka-Lissanercohimn, the direct cerebellar column, and the Growers column. Thecolumns of Goll are seen on each side of the posterior median septum. Fig. 38ANTERIOR PYRAMIDAL COL.
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