. The comparative anatomy of the domesticated animals. Veterinary anatomy. 684 THE CENTRAL AXIS OF THE NERVOUS SYSTEM. Fig:. the corpus restiforme; an inferior, represented by tlie corpus pyramidale; and tlie third, or intermediate of the other two. These three fasciculi are only the continuation of those we have recognised in the cord itself, and whose properties they share—the first being sensitive, and the others motor. The superior fasciculus, or corpus restiforme, lying, at its posterior extremity, beside its fellow of the oj)posite side, is separated from it for the greater part of
. The comparative anatomy of the domesticated animals. Veterinary anatomy. 684 THE CENTRAL AXIS OF THE NERVOUS SYSTEM. Fig:. the corpus restiforme; an inferior, represented by tlie corpus pyramidale; and tlie third, or intermediate of the other two. These three fasciculi are only the continuation of those we have recognised in the cord itself, and whose properties they share—the first being sensitive, and the others motor. The superior fasciculus, or corpus restiforme, lying, at its posterior extremity, beside its fellow of the oj)posite side, is separated from it for the greater part of its extent by the excava- tion that constitutes the floor of the fourth ventricle. It rests on the external part of the lateral fasciculus. At the extremity of the pons Varolii is given oflf a small branch that forms the pos- terior cerebellar jDcduncle; it then continues its com'se on the side of the posterior ventricle, soon joins the anterior cerebellar peduncle, which is above it, and DISSECTION OF THE MEDULLA OBLONGATA, SHOWING with it passcs Dencath the cor- THE CONNECTION OP ITS SEVERAL FASCICULI, OR pora quadrigomiua. STRANDS. The inferior fasciculus, the A, Corpus striatum; B, Thalamus opticus; C, D, Cor- thinnest of the three, comprises, pora quadrigemina; E, Commissure connecting as has been said, all that portion them with the cerebellum: F, Corpora restilor- . ,, in , . i ,-j . mia; p, p, Pons Varolii; st, st, Sensory tract; of the bulb which constitutes mt, mt, Motor tract; g, Olivary tract; p, Pyrami- the pyramid. But when this dal tract; og. Olivary ganglion ; op, Optic nerve ; eminence is null, or but slightly 3?«, Root of third pair (motor); 5s, Sensory root „iarked, we ought to recognise of the htth pair. ^^^ ^.^^.^^ ^j^.^j^ separate it from the lateral fasciculus by the line of insertion of the roots of the great hypoglossal nerve, supposed to be prolonged to the pons Varolii, near the point of emergence of the external motores oculorum nerve. Its fibr
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