. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. 162 CRANIAL NERVES. Passing through the cavernous sinus, it escapes from the cranium through the sphenoidal foramen or fissure, and is distributed to the external rectus muscle. Its paralysis will produce an internal squint, A branch enters the carotid canal to join the ganglion of Laumonier. 5th. Trifacial.—From the ganglion of Casser, which is upon the trunk^ of this nerve, proceed three branches, the ophthalmic,^
. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. 162 CRANIAL NERVES. Passing through the cavernous sinus, it escapes from the cranium through the sphenoidal foramen or fissure, and is distributed to the external rectus muscle. Its paralysis will produce an internal squint, A branch enters the carotid canal to join the ganglion of Laumonier. 5th. Trifacial.—From the ganglion of Casser, which is upon the trunk^ of this nerve, proceed three branches, the ophthalmic,^ supe- rior maxillary,'' and inferior maxillary.» The oj^kthalmic^ passes out through the sphenoidal foramen, and then divides into three branches, the nasal, frontal, and lachrymal. The nasal'^^ gives off the iyiternal f'^g- 141. nasal, which enters the anterior ethmoidal foramen, and then goes through the cribriform plate into the nose; and also a branch {ratmis ciliaris) to the lenticular or ophthalmic ganglion. It is dis- tributed to the muscles, eyelids, and conjunctiva. The frontal^ divides into two branches, and is spent upon the integuments and muscles of the forehead; one branch goes through the supra- orbitary foramen. The lachry- 'nial'^^ branch supplies the lachry- mal gland, and the contiguous portions of the orbit. ^The superior maxillary'^ passes through the foramen rotundum, and then enters the pterygo-max- illary fossa. A large branch called hifra orbitat^^ traverses the infra-orbital canal, and emerges at the infra-orbital foramen^s to supply the face ; giving off the dental nerves'^^ ^^ in its course. The pterygo-palatine branchy or branches, join the ganglion of Meckel, from which proceed the spheno-palatine branches, which enter the nose through the spheno-palatine foramen ; one of these branches is long, and called naso-palatine, which joins its fellow at the ganglion of Cloquet in \\\q foramen incisivum; the posterior palatine descends from the ganglion
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