CHAP. XI.
Of the third and fourth Pair.
THE third pair is termed Motorium oculorum,* 1.1 because it moveth the Muscles of the Eyes.* 1.2 It hath its beginning at the innermost part or ba∣sis of the Medulla oblongata behind the Infundi∣bulum.
This pair is united at its rise;* 1.3 whence is com∣monly drawn a reason why one Eye being moved towards any object, the other is directed also to the same.
It is smaller and harder than the former,* 1.4 and being presently divided passes along by the op∣tick pair, and penetrating the second hole of Os cuneiforme, is carried towards the globe of the Eye, where it is divided into four branches. The first whereof mounting above the Optick, is bestowed upon the attollent Muscle, and the Eye∣lid. The second easie to be seen is bestowed upon the adducent Muscles by sundry small twigs. The third by many Fibres is inserted into the depri∣ment Muscle. The fourth is inserted into the middle of that Muscle that draws about the Eye