File:Diseases of the nervous system (1908) (14778969562).jpg

Identifier: diseasesofnervo00chur (find matches)
Title: Diseases of the nervous system ..
Year: 1908 (1900s)
Authors: Church, Archibald, b. 1861, ed Salinger, Julius L. (Julius Lincoln), tr
Subjects: Nervous system
Publisher: New York and London : D. Appleton and company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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tegmentum, and this after previous decits-sation in the raphe may carry the motor neurons to the cerebral nerve nuclei,particularly to both of the above mentioned nuclei. Other fibers of the pedun-cles which do not form this bundle, and which extend no further caudally,are lost in the numerous nerve-celJs of the pons which lie between the fiberspassing through the cerebellum (the fibers of the middle peduncle of thecerebellum). The remainder of the ventral portion of the crits cerebri which passestransversely through the pons as a closed bundle (Figs. 61, 62) and then ex-tends caudalward is called the pyramidal tract. This unites at the posterior 68 HISTOLOGY OF THE CENTRAL NERVOUS SYSTEM border of the pons in the form of the so-called pyramids at the base of themedulla (Figs. 42, 43, 61, 62), and subsequently with the so-called pyramidal Truncus corporis callosiSeptum pellucidum \ Corpus fornicis Genu corporis callosi Cornu anterius ventriculi lateralis caudati a fornicisula interna
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Radiatio occipi- /MvJ^^ :f jI ^to-thalamica ;!; i^/ (Gratioleti). \;il;;jill^^ W Splenium corporis callosi Corpus pinealfHippocampus Eminentiacollateralis Calcar. avis \,(ij;jjip^ v^uium posterius ji JjlP^ ventriculi lateral Fissura calcarinaFig. 64.—Hoeizontal Section through the Hemispheres (Somewhat Deeper upon the Right Side). (After Toldt.) XEUROX SYSTEMS AND XEUKOX DISEASES 69 Sensorj^ collaterals decussation below the point where the lower olives are laterally attached.The majority of the fibers in this tract cross to the other side, and simul-taneously extend to the ventral surface on that side of the cord, which theycontinue to traverse as the pijramidal lateral column tract (Fig. 37, h). Inman a few of these fibers do not cross but remain in the anterior columns,the so-called Turks bundle (Fig. 28. /) : subsequently they also pass down-ward into the spinal cord. In the spinalcord itself these fil)ers of the pyramidaltract pass from time to time to the largemotor anterior h

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