. Diseases of the nervous system : for the general practitioner and student. cted backward and outward, and a knee, the angle where thetwo limbs meet. Corona Radiata.—The fibers of the internal capsule, after they leavethe surrounding basal ganglia, as well as the fibers of the corpus callosum,spread in all directions to the cortex (centrum semiovale). The radiationsof the internal capsule are called corona radiata. Among the latter there 32 THE CENTRAL NERVOUS SYSTEM is a special posterior band distributed in the lateral wall of the posteriorcornu of the lateral ventricle, called optic radiat
. Diseases of the nervous system : for the general practitioner and student. cted backward and outward, and a knee, the angle where thetwo limbs meet. Corona Radiata.—The fibers of the internal capsule, after they leavethe surrounding basal ganglia, as well as the fibers of the corpus callosum,spread in all directions to the cortex (centrum semiovale). The radiationsof the internal capsule are called corona radiata. Among the latter there 32 THE CENTRAL NERVOUS SYSTEM is a special posterior band distributed in the lateral wall of the posteriorcornu of the lateral ventricle, called optic radiations. They originate inthe cells of the pulvinar, lateral geniculate body and anterior quad-rigeminal body. The entire white substance of the brain presents three systems of ANTERIOR CORNU GYRUS CINGULT CORPUS CALLOSUM CA UDA TENUCLEUSINTERNAL CAP-SULE (FRONTALPORTION) EXTERNAL CAPSULE LENTICU- f PVTAMEN LAR NU-< GLOBUS CLEUS I PALLID US CIA USTR UMINTERNAL CAP-SULE [OCCIPITALPORTION) THALAMUS MEDIAL GENI-CULATE BODYCA UDA TENUCLEUSHIPPOCAMPUS MAJOR HIPPOCAMPUS MINOR. SEPTUMPELLUCID UM CORPUS STRIATUMCOLUMN OF FORNIX STRIA TERMI-NALS OFTHALAMUS THALAMUS CORPORA QUAD-R1GEMINA BRACHIUM \CONJUSC-TIYUM t REST/FORMBODY ( BRACHWit PONTJS j CERE-BELLARPEDUN-CLES TRIGONUM VAGI(ALA CINEREA) CLA VAFUNICULUS CUNEATUS FUNICULUS GRACILIS Fig. 28.—Horizontal Dissection showing the Gray and White Substance of theTelencephalon Below the Corpus Callosum and the Relative Position of the Thal-amencephalon. {Morris, after Landois and Stirling.) fibers having different functions. They are: projection, association andcommissural fibers. A. Projection Fibers.—They are ascending and descending. Ascending fibers are constituted by the following tracts (Fig. 29 ). THE CENTRAL NERVOUS SYSTEM 33
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectnervous, bookyear1913
