Archive image from page 678 of Cunningham's Text-book of anatomy (1914). Cunningham's Text-book of anatomy cunninghamstextb00cunn Year: 1914 ( THE NEOPALLIUM. 645 hemisphere which lies subjacent to the gray cortex is composed of medullated nerve- fibres, arranged in a very intricate manner. But the arrangement of these fibres cannot be properly understood until the configuration of the surface of the hemi- sphere has been considered. Fig. 574.—Diagram to illustrate the Minute Structure of the Cerebral Cortex and explain how it influences the macroscopic appearance. A 'I E. Small pyramidal
Archive image from page 678 of Cunningham's Text-book of anatomy (1914). Cunningham's Text-book of anatomy cunninghamstextb00cunn Year: 1914 ( THE NEOPALLIUM. 645 hemisphere which lies subjacent to the gray cortex is composed of medullated nerve- fibres, arranged in a very intricate manner. But the arrangement of these fibres cannot be properly understood until the configuration of the surface of the hemi- sphere has been considered. Fig. 574.—Diagram to illustrate the Minute Structure of the Cerebral Cortex and explain how it influences the macroscopic appearance. A 'I E. Small pyramidal cell. ' Neuroglia cells. C. Cell with short axon (N) which break? up in a free arborisation. D. Spindle-shaped cell in stratum zonale. F. Large pyramidal cell. G. Cell of Martinotti. H. Polymorphic cell. K. Corticipetal fibres. THE NEOPALLIUM. Fibre-tracts proceed into different districts of the neopallium from the various nuclei of the thalamus to serve as the channels through which tactile, visual, acoustic, and other kinds of sensory impressions are poured into it. These districts may be regarded as the receptive sensory areas, tactile, visual, acoustic, etc,; but around each sensory area there is differentiated a series of more or less concentric bands of neopallium, which are related to an incoming sensory path only through the intermediation of the sensory area which it fringes. Finally, there are interposed between the sensory area and its fringing bands of one sense and those of another certain association areas, which cannot be regarded as the territory of 42 6
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