Text-book of ophthalmology . left eye. U, left upper lid. Ill, left oculo-motor nucleus. IV, left trochlear nucleus. VI, leftabducens nucleus, connected with III by posterior longitudinal bundle, P. a, a, a, association fibers,from right hemisphere (angular gyrus) to VI, bifurcating there to form a, a, a, fibers to the left ex-ternal rectus and a, a, a, fibers to right internal rectus. Latter fibers pass through P to III and!thence through C to the muscle. These fibers subserve parallel movements only, i. e., rotation to theleft in conjunction with the left external rectus, b, b, b, fibers to
Text-book of ophthalmology . left eye. U, left upper lid. Ill, left oculo-motor nucleus. IV, left trochlear nucleus. VI, leftabducens nucleus, connected with III by posterior longitudinal bundle, P. a, a, a, association fibers,from right hemisphere (angular gyrus) to VI, bifurcating there to form a, a, a, fibers to the left ex-ternal rectus and a, a, a, fibers to right internal rectus. Latter fibers pass through P to III and!thence through C to the muscle. These fibers subserve parallel movements only, i. e., rotation to theleft in conjunction with the left external rectus, b, b, b, fibers to left internal rectus (subserving con-vergence only, not parallel movements), c, c, c, fibers to left superior rectus, d, d, d, fibers to leftlevator palpebral e, e, e, fibers, (few in number) to the left inferior oblique. /, /, /, fibers (many innumber) to right inferior oblique, g, g, g, fibers to right inferior rectus, h, h, h, fibers to right superioroblique, i, i, i, fibers to left iris and ciliary muscle.—D.] Carotls. Oculomotorlus Trochlearis- Abducens— Trigeminus I — « H II a III Jj InfundibuliiraHypophysis % Body of Sphenoid Foramen ovale Fig. 310.—Frontal Section through the Sinus Cavernosus. (After Merkel).The sinus lies upon the lateral division of the body of the sphenoid bone. It is traversed bynumerous septa which are attached also to the inner and lower wall of the carotid artery, which form-ing an S-shaped bend lies in the sinus. The outer and upper wall of the carotid artery is adherentto the wall of the sinus. Imbedded in this wall lie the three nerves supplying the eye muscles, andfurther below lie the first and second branches of the trigeminus. The third branch of the trigeminualeaves the cranial cavity through the foramen ovale. 726 TEXT-BOOK OF OPHTHALMOLOGY The nucleus of the abducens (VI, Fig. 307) lies pretty far behind the nuclei ofthe other two nerves, and in the immediate vicinity of the facial nucleus (VII, ), a little in front of t
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecteye, booksubjectophth
