Quain's elements of anatomy . has beenseparated somewhat from the cerebellum in order to bring into view the posteriormedullary velum. To display this better the amygdalte have been removed. p s, posterior superior lobe ; / Ji, horizontal fissiue ; jJ i, posterior inferior lobe ;g, slender lobe ; b i, biventral lobe ; c to n, inferior vermiform process, on which are,c, tuber valvulse, p, pyramid, u, uvula, n, nodule (the letter is placed in the ); /, flocculus ; p i, on each side, placed on the cut surface where the amygdalaehave been removed, points by a line to the lateral pa
Quain's elements of anatomy . has beenseparated somewhat from the cerebellum in order to bring into view the posteriormedullary velum. To display this better the amygdalte have been removed. p s, posterior superior lobe ; / Ji, horizontal fissiue ; jJ i, posterior inferior lobe ;g, slender lobe ; b i, biventral lobe ; c to n, inferior vermiform process, on which are,c, tuber valvulse, p, pyramid, u, uvula, n, nodule (the letter is placed in the ); /, flocculus ; p i, on each side, placed on the cut surface where the amygdalaehave been removed, points by a line to the lateral part of the inferior medullary velum ;its median part is continuous with the anterior sui-face of the nodule ; v, v, cavity of thefourth ventricle ; the ca\ity extends on each side into the lateral recess ; m, meduUaoblongata ; V, VI, roots of the fifth and sixth cranial nerves. The hemispheres are separated behind by a deep notch. The uppervermiform process, though slightly elevated, is not marked off from the 306 hemispheres, so that the upper surface of the organ, which is somewhatflattened in the middle and sloping downAvard on each side, is uninter-rupted. Below, the hemispheres are convex, and are separated by a deepfossa, named the vallecula, which is continuous with the notch behind,and in it the inferior vermiform process (fig, 276, c to n, fig, 278, 2, 2)lies concealed in a great measure by the surrounding parts. Intothis hollow the medulla oblongata is received in front, and the falxcerebelli behind. Fig. 277. Fig. 277. —Outline of the upper SURFACE OP THE CEREBELLUM:, (Allen Thomson.) ^ At tlie upper jj^-rt of tlie figuretlie cnira cerebri and parts behindthem have been cut througji and leftin connection with the cerebellnm. Ill, the third pair of nerves Ijingupon the crura cerebri; c r, whitematter or crust of the crura cerebri ;111, locus niger; t, tegmentum con-taining grey matter in the upperpart of the crura; a s, aqueduct ofSylvius; q, corpora qua
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
