. Cunningham's Text-book of anatomy. Anatomy. Oculo-motor nerve (superior division) Xaso-ciliary nerve Oculo-motor nerve (inferior division) Abducens nerve Maxillary nerve Abducens nerve Cavernous sinus / Ophthalmic nerve Maxillary nerve | Mandibular nerve Foramen ovale Mandibular nerve Motor root of trigeminal nerve Fig. 645.—Relations of Structures in the Cavernous Sinus and Superior Orbital Fissure. lateral wall of the cavernous sinus, and enters the orbit through the superior orbital fissure and between the two heads of the lateral rectus muscle. As it enters the orbit it divides into uppe
. Cunningham's Text-book of anatomy. Anatomy. Oculo-motor nerve (superior division) Xaso-ciliary nerve Oculo-motor nerve (inferior division) Abducens nerve Maxillary nerve Abducens nerve Cavernous sinus / Ophthalmic nerve Maxillary nerve | Mandibular nerve Foramen ovale Mandibular nerve Motor root of trigeminal nerve Fig. 645.—Relations of Structures in the Cavernous Sinus and Superior Orbital Fissure. lateral wall of the cavernous sinus, and enters the orbit through the superior orbital fissure and between the two heads of the lateral rectus muscle. As it enters the orbit it divides into upper and lower branches, separated by the naso- ciliary nerve. Branches. — The superior branch of the nerve supplies two muscles of the orbit—the superior rectus and the levator palpebrse superioris. The inferior branch passes forwards, and after giving branches to the medial and inferior recti, ends in the inferior oblique muscle. The short root of the ciliary ganglion arises from the terminal branch which goes to the inferior oblique Posterior commissure of the brain Pineal body Jj Corpora quadrigemina Frenulum veli Anterior medullary velum Brachium conjunctivum Trochlear nerve Lateral lemniscus Brachium conjunctivum Pedunculus cerebri Lingula Fig. 646.—Dorsal Surface of the Mid-Brain, to show the origin of the trochlear (fourth) nerve. Communications.—1. Id the cavernous sinus the oculo-motor nerve communicates with the cavernous plexus on the internal carotid artery. 2. In the cavernous sinus it also receives a slender communication from the ophthalmic division of the trigeminal nerve. 3. The short root of the ciliary ganglion passes upwards from the branch of the nerve which supplies the inferior oblique muscle. Nervus Trochlears. The fourth or trochlear nerve emerges from the dorsal surface of the mid- brain. It arises at the side of the frenulum veli from the anterior end of the anterior medullary velum, just behind the corpora quadrigemina. It is extreme
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
