A treatise on nervous diseases; their symptoms and treatment . Fkj. 12.—Transverse section of the medulla on the right at a higher level thanon the left. (After Wernicke.) P, the anterior pyramidal fibers; 6>, the inferior olivary body; Ic, the lateralcolumn; cr, the restiform body; pc, the posterior columns; /, longitudinal fibers;c, central canal; Va, ascending root of the fifth; x, xi, xn, the corresponding:, xi, xii, their nuclei; x, anterior vagus nucleus. ANATOMY. 31 much practical interest. It enters the pons just behind(below) the seventh, and divides into three bundles,which are di
A treatise on nervous diseases; their symptoms and treatment . Fkj. 12.—Transverse section of the medulla on the right at a higher level thanon the left. (After Wernicke.) P, the anterior pyramidal fibers; 6>, the inferior olivary body; Ic, the lateralcolumn; cr, the restiform body; pc, the posterior columns; /, longitudinal fibers;c, central canal; Va, ascending root of the fifth; x, xi, xn, the corresponding:, xi, xii, their nuclei; x, anterior vagus nucleus. ANATOMY. 31 much practical interest. It enters the pons just behind(below) the seventh, and divides into three bundles,which are distributed to separate nuclei. It is scarcelynecessary to give the particulars of its deep Fig. 13.—Schematic view of the relative situations of the nuclei in the medulla.(After Erb.) v-xn, the nerves or their nuclei; 1, middle, 2, superior, 3, inferior cerebellarpeduncle; 4, restiform body; 5, eminentiateres ; 6, acoustic fibers; V,alacinerea. The relations and origins of the nerves of the me-dulla oblongata can be easily learned by a study of theaccompanying figures (12 and 13), and it is scarcelynecessary to give more detailed descriptions. The distribution of the blood-vessels in the brainhas been studied especially by Duret. The results ob-tained are of much practical value. The circle of Wil- 32 DISEASES OF TEE BRAIK lis at the base of the brain furnishes rather free com-munication between the carotids and the vertebrals ofthe same side, and between the arteries at the posteriorpart of the brain on opposite sides, unless there areanomalies in the size of the arteries. Anteriorly, theonly communication between the two carotids is theanterior communicating artery. The
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectnervoussystem, bookye
