. Quain's elements of anatomy . in the region of the superior corporaquadrigemina (fig. 286, B) extending as far forwards as the level of theposterior commissure. Inferiorly, it is continued with scarcely any in-terval by the nucleus of the fourth nerve. From this column of ceUs thefibres pass forwards through the tegmentum and the tegmental nucleus,and partly through the substantia nigra, to emerge at the line of theoculomotor gi-oove on the iimer surface of the cms cerebri close to thepons. A small jjart of the root often emerges from between the fibresof the crusta, and joins the trunk of t
. Quain's elements of anatomy . in the region of the superior corporaquadrigemina (fig. 286, B) extending as far forwards as the level of theposterior commissure. Inferiorly, it is continued with scarcely any in-terval by the nucleus of the fourth nerve. From this column of ceUs thefibres pass forwards through the tegmentum and the tegmental nucleus,and partly through the substantia nigra, to emerge at the line of theoculomotor gi-oove on the iimer surface of the cms cerebri close to thepons. A small jjart of the root often emerges from between the fibresof the crusta, and joins the trunk of the nerve independently. From tlie nucleus of tlie fhird nerve a few fibres pass towards the raphe,perhaps to join the nerve of the opposite side, perhaps, as Meynert supposes, to passas fibraj rectas and enter the pyranudal tract of the other side, and to be con-ducted along this to the cerebrum. The fourth or trochlear nerve arises from a nucleus whichlies in the region between the superior and inferior quadrigeminal Fi?. i^ m
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
