. A treatise on nervous and mental diseases, for students and practitioners of medicine. ns andmedulla are supplied from the other larger vessels of the circle of ANATOMY. 77 Willis. The inferior cerebellar artery passes to the lateral portionsof the medulla oblongata and the lower inferior cerebellar peduncle,and gives rise on each side to a posterior spinal artery which nour-ishes the posterior columns and finally divides into three branches :one for the vermis, anastomosing with its fellow of the opposite sideand two lateral branches; one supplying the inner surface of thecerebellar hemisph
. A treatise on nervous and mental diseases, for students and practitioners of medicine. ns andmedulla are supplied from the other larger vessels of the circle of ANATOMY. 77 Willis. The inferior cerebellar artery passes to the lateral portionsof the medulla oblongata and the lower inferior cerebellar peduncle,and gives rise on each side to a posterior spinal artery which nour-ishes the posterior columns and finally divides into three branches :one for the vermis, anastomosing with its fellow of the opposite sideand two lateral branches; one supplying the inner surface of thecerebellar hemisphere; the other the under surface of the three arteries have enormous anastomoses on the surface of thecerebellum and also communicate with the posterior cerebral artery. CRANIAL TOPOGRAPHY. Of late years, since the localization of cortical centres has come solargely into play in neurological diagnosis, much attention has beenpaid to the relative position of the different fissures and convolutionsof the brain and cerebellum and to the cranial sutures and bones. The Fig. Diagram illustrating prominences of the skull. subject was first studied in 1857 l)y Gratiolet, in 1861 and again in1877 Vjy Broca, and since then by Bischoif, Heftier, Turner, F6re,Fouillehouze, Ecker, Lucas-Championnierc, Pozzi, Horsley, Thane,Hare, and Dana. Danas article not only contains a number oforiginal observations, but is by all odds the best and most precisesummary of the subject, and I advise any surgeon or neurologist tohave recourse to it in case of need. 78 INTRODUCTORY. Broca has given certain names to the different points of union ofthe sutures, and these are marked out on the accompanying diagram,and with them tiie surgeon and neurologist should be principal ones are the nasion, the inion, the glabella, thelambda, the stephanion, the pterion, and the asteinon. The nasionis at the junction of the nasal and the frontal bones; the inion isidentical with the occipital p
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