The anatomy of the nervous system, from the standpoint of development and function . cerebralhemisphere of the sheep. It will be seen that the region which corresponds tothe insula is on a level with the general surface of the hemisphere; no operculahave developed, and the lateral sulcus is only a shallow groove (Fig. 173). 238 THE NERVOUS SYS I EM THE MEDIAN AND BASAL SURFACES The occipital lobe comes more nearly being a structural and functionalentity than any of the other lobes. It corresponds in a general way to theregio occipitalis as outlined by Brodman (Figs. 216, 217). and it is probab
The anatomy of the nervous system, from the standpoint of development and function . cerebralhemisphere of the sheep. It will be seen that the region which corresponds tothe insula is on a level with the general surface of the hemisphere; no operculahave developed, and the lateral sulcus is only a shallow groove (Fig. 173). 238 THE NERVOUS SYS I EM THE MEDIAN AND BASAL SURFACES The occipital lobe comes more nearly being a structural and functionalentity than any of the other lobes. It corresponds in a general way to theregio occipitalis as outlined by Brodman (Figs. 216, 217). and it is probablyall concerned directly or indirectly with visual processes. We have seen thatit forms a small convex area on the lateral surface near the occipital pole;and we now note that it is continued on to the medial surface of the hemi-sphere, where it forms a somewhat larger triangular field between the parieto-occipital and anterior portion of the calcarine fissure dorsorostrally and the Sulcus cinguliSulcus of corpus callosum. Body of corpus callosum Paracentral lobuleCentral sulcus. Sup. frontalgyrus Frontal por. ofsulcus cinguliFrontal poleGenu of corp. cat. Septum pellucidumRosl. of corpus callosumA nlerior parolfactory sulcus Parolfactory area , Temporal pole UncusAnterior commissure Fimbria Hippocampal gyrus ^Marginal portion of sulcus cinguliPrecuneus Column of fornixySubparielal sulcusCrus of fornix .- Paricto-occip. lli. of gyrusfornicatusCuneus Calcarinefissure -Occipital poh Lingual gyrusInferior temporal gyrusInferior temporal sulcusFusiform gyrus Collateral fissureFasciola cinerca Fig. 170.—Human cerebral hemisphere seen from the medial side. The brain has beendivided in the median plane and part of the thalamus has been removed along with the mesen-cephalon and rhombencephalon. (Sobotta-McMurrich.) collateral fissure ventrally. On this aspect of the brain it includes two constantand well-defined convolutions: the cuneus and the Ungual gyrus (Fi
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectnervoussystem, bookye
