. A treatise on the nervous diseases of children : for physicians and students. ddle cerebral has shown by carefully conducted experiments that blood-pressure isgreatest in the ganglionic branches of the middle cerebral artery. In thechild, however, this region is less frequently affected. By far the largernumber of accidents in the child occur in the domain of cortical and pialvessels : some of these can be explained as the effect of traumatic injury tothe surface of the skull and the convexity of the brain. But after makingdue allowance for traumatism, hemorrhage from the corti
. A treatise on the nervous diseases of children : for physicians and students. ddle cerebral has shown by carefully conducted experiments that blood-pressure isgreatest in the ganglionic branches of the middle cerebral artery. In thechild, however, this region is less frequently affected. By far the largernumber of accidents in the child occur in the domain of cortical and pialvessels : some of these can be explained as the effect of traumatic injury tothe surface of the skull and the convexity of the brain. But after makingdue allowance for traumatism, hemorrhage from the cortical vessels is much ANATOMY AND PHYSIOLOGY OF THE BRAIN. 465 more frequent in early life than in later years. The more delicate structureof these cortical and pial vessels may be in part responsible for this, but thequestion cannot be considered to be definitely settled until more careful ex-aminations shall have been made. I have thought it best to call attention at once to points wherein the cir-culation in the childs brain differs from that in the adult, but to understand. Fig. 130.—The Arteries at the Base of the Brain. (After Thane and Duret, fromSchiifer.) The posterior cerebral are cut at their origin from the basilar. Centralarteries (to the basal ganglia) : am, antero-mesial group arising from the anteriorcerebral; al, antero-lateral group (middle cerebral) ; pm,pl (on the optic thalamus),from the posterior cerebral; ach, pck, anterior and posterior choroidal arteries: i, i, inferior internal frontal (ant. cerebr. art.); 2, inf. ; 3, ascending frontal; 4, ascending parietal ; 5, temporo-parietal (middlecerebr.) ; 6, 7, 8, ant. post, occipital divisions from the post, cerebral arteries. the problems satisfactorily we must first study the exact manner in whichthe blood is carried to, and distributed throughout, the brain. The external carotid supplies the scalp, the skull, and the dura 466 THE NERVOUS DISEASES OF CHILDREN. The in
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