A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . s pass through the sub-stantia gelatinosa to terminate in the motor nuclei ofthe v., VII. and XII. nerves. Some root fibers of thetrigeminus also extend medialward and backward toenter the rostral end of the fasciculus solitarius. terminate in the tegmentum before reaching the thala-mus. (2) The ventral sceondary trigeminal chiefly from the frontal pole of the chief sensorynucleus, decussates in the ventral tegmental decussa-tion, turns forward in a pos
A reference handbook of the medical sciences, embracing the entire range of scientific and practical medicine and allied science . s pass through the sub-stantia gelatinosa to terminate in the motor nuclei ofthe v., VII. and XII. nerves. Some root fibers of thetrigeminus also extend medialward and backward toenter the rostral end of the fasciculus solitarius. terminate in the tegmentum before reaching the thala-mus. (2) The ventral sceondary trigeminal chiefly from the frontal pole of the chief sensorynucleus, decussates in the ventral tegmental decussa-tion, turns forward in a position dorsomedially of themedial lemniscus and terminates chiefly in the rostralend of the ventral nucleus of the thalamus and also inthe centre median of Luys (nucleus medialis b, of vonMonakow, Fig. 9-15). The ventral path has been dem-onstrated by Wallenbferg in birds as passing from trigeminus nucleus directly forward throughthe midbrain and thalamus, to which it contributes 304 REFERENCE HAND BOOK OF THE MEDICAL SCIENCES. PLATE XVI. Reprinted from Vol. IX Reports of the Johns Hopkins Hospital, by REFERENCE HANDBOOK OF THE MEDICAL SCIENCES Brain, Anatomy of soino fillers, and a part of its fibers continue still fart herforward without interruption through the cerebralheniisjiliere to end in the area parolfactoria, or tuber-cuhini olfaetoriuni. This tract he terms the tractus(liiintofrontalis. No fibers of the trigeminal lemnis-cus are known to extend farther forward than thetlialamus in mammals. Direct root libers have been described from the tri-geminus to tlie cerebelhun. These ajijiarcntly do notoccur in mammals, though fibers of the second orderundoubtedly connect witli the cerebellum. The portio minor of the trigeminus root (nervusmasticatorius) is of mixed function. The greaterpart is motor for the innervation of the muscles ofmast [cation. Those fibers arise from t he cliief motor (nucleus masticatorius) at the level of the su-perfi
Size: 1338px × 1867px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorbuckalbe, bookcentury1900, bookdecade1910, bookyear1913
