. Diseases of the nervous system : for the general practitioner and student. inus) nerve, its motor portionwith the descending motor fibers is found in the mid-brain. The RedNuclei are two round pigmented masses of gray matter, situated in thetegmentum under the anterior quadrigeminal bodies. They receivefibers from the cerebral cortex and corpus striatum, also send out fibersto the thalamus and spinal cord (Fig. 20). 24 THE CENTRAL NERVOUS SYSTEM AREA OF OPTIC THALAMI, THIRD INTERBRAIN The Optic Thalami are two voluminous ovoid masses of gray sub-stance situated in fro
. Diseases of the nervous system : for the general practitioner and student. inus) nerve, its motor portionwith the descending motor fibers is found in the mid-brain. The RedNuclei are two round pigmented masses of gray matter, situated in thetegmentum under the anterior quadrigeminal bodies. They receivefibers from the cerebral cortex and corpus striatum, also send out fibersto the thalamus and spinal cord (Fig. 20). 24 THE CENTRAL NERVOUS SYSTEM AREA OF OPTIC THALAMI, THIRD INTERBRAIN The Optic Thalami are two voluminous ovoid masses of gray sub-stance situated in front of and laterally to the quadrigeminal bodies (seepreceding chapter) and on both sides of the third ventricle. Close toeach other in front they diverge posteriorly. THALAMUS \- - INTERNAL CAPSULE BUNDLE FROM■ RED NUCLEUSTO THALAMUS - BUNDLE FROM RED NUCLEUS TO INTERNAL CAPSULE- RED NUCLEUS .DECUSSATION OF BRACHIA CONJUNCTIVA. - BRACHIUM CONJUNCTIVUM(superior peduncle) INFERIOR PEDUN- CLE (resliform body) BUNDLE TO CERE---BELLAR CORTEX DENTATE NUCLEUS MEDULLA OBLONGATA. Fig. 20.—Transparency Drawing showing the Origin, Course and Connections ofthe Superior Cerebellar Peduncles (Brachia Conjunctiva) in the Formation ofStirlings Scissors. {Morris Anatomy.) The upper surface (stratum zonale) is white. On its anterior portionit presents an elevation, called the anterior tubercle or nucleus. Theposterior elevated portion is called pulvinar. There is also a medialnucleus. On the postero-internal portion of the same surface there isthe trigonum habenulse. The external margin is separated from theadjacent caudate nucleus by a linear white substance (taenia semicir-cularis). THE CENTRAL NERVOUS SYSTEM 25 The lower surface is adherent to the cerebral peduncles. The outer surface is in connection with the internal capsule andcaudate nucleus. The inner surface forms the walls of the third ventricle; in its anteriorhalf it is united with that of the opposite side by a gray commissure.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectnervous, bookyear1913
