. The physiology of domestic animals ... Physiology, Comparative; Veterinary physiology. 798 PHYSIOLOGY OF THE DOMESTIC ANIMALS. The other systems of fibres terminate in the medulla oblongata, the column of Goll serving to connect part of the fibres of the posterior roots with the gray nuclei of the funiculi graciles of the medulla oblongata; and the column of Burdach the posterior roots through the restiform body with the vermiform process of the cerebellum, while the anterior and lateral mixed columns communicate with the formatio reticularis of the medulla oblongata. Of these columns the py
. The physiology of domestic animals ... Physiology, Comparative; Veterinary physiology. 798 PHYSIOLOGY OF THE DOMESTIC ANIMALS. The other systems of fibres terminate in the medulla oblongata, the column of Goll serving to connect part of the fibres of the posterior roots with the gray nuclei of the funiculi graciles of the medulla oblongata; and the column of Burdach the posterior roots through the restiform body with the vermiform process of the cerebellum, while the anterior and lateral mixed columns communicate with the formatio reticularis of the medulla oblongata. Of these columns the pyramidal tract, the cerebellar tract, and the column of Goll are the only ones which steadily increase in size as the medulla oblongata is approached. 1. Hlf. Fig. 340.—Course or the Fibres in the Spinal Cord, after F. Fjlesch. (Thanhoffer.) Ms, anterior horn ; ]In, posterior horn ; rnq, anterior root; m(j, 1, 2, 3, fibi'OUS bundles of the anterior root; Ji</, posterior root; kg, 1, 2, fibrous bundles of the posterior root; mlp, direct pyramidal tract; olp, crossed pyramidal tract; o'a/r, lateral ground-bundle ; eaop, direct cerebellar tract; mix];, anterior ground- bundle ; he, central canal; Co, intermedio-lateral column of Clarke ; G, funiculus gracilis of Goll; Bt funiculus cuneatus of Burdach; x, oblique bundles of fibres. If we trace by means of the microscope the origins and terminations of the spinal nerves it will be found that the posterior roots of the spinal nerves pass through the white substance of the cord to reach the posterior gray column, in which they break up into fine twigs, uniting with the ganglia of the cord, although their mode of connection with the cells is not capable of ready detection. Having entered the cord, the fibres of the posterior nerve-roots .are seen to divide into three different bundles. The fibres of the anterior roots may likewise be divided into three. Please note that these images are extracted from scanned page images that may h
Size: 1717px × 1455px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectphysiologycomparativ
