Quain's elements of anatomy . overed by pia mater,and which, extending- backwards from the foramen of Monro, cover in the thirdventricle and occupy the great transverse fissure of the brain. These folds,extending themselves laterally and backwards, and becoming more and moreplicated and vascular at the edges, give rise to the choroid plexus of the lateralventricles and the velum interpositum. The olfactory Johes are outgrowths from the lower and lateral parts of thecerebral hemispheres, being more immediately connected with the frontal lobes,but extendiug through the fissure of Sylvius as far
Quain's elements of anatomy . overed by pia mater,and which, extending- backwards from the foramen of Monro, cover in the thirdventricle and occupy the great transverse fissure of the brain. These folds,extending themselves laterally and backwards, and becoming more and moreplicated and vascular at the edges, give rise to the choroid plexus of the lateralventricles and the velum interpositum. The olfactory Johes are outgrowths from the lower and lateral parts of thecerebral hemispheres, being more immediately connected with the frontal lobes,but extendiug through the fissure of Sylvius as far as the temporal or middlelobes. They are at first hollow, and in some animals their cavity is in permanentcommunication with the lateral ventricles. In man they become solid at anearly period. Development of the Convolutions and Sulci.—Adoptiag the distinction ofthe convolutions and sulci of the cerebral hemispheres as of two kinds, • primitive and secondary, according as the former result from a folding of Eig.
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
