Applied anatomy and oral surgery for dental students . Fifth: trifacial. [a) Sphenoiisure. dfis- Ophthalmic. Sensory. (b) Rotundi im. Maxillary. Sensory. (c) Ovale. Mandibular. Sensory. Mo-tor to mus-cles of masti-cation. Sixth: abducens. Sphenoidsure. fis- External rectusmuscle. Motor. Seventh: facial. Stylomastoid. Facial muscles. Motor. Eighth: audit- Internal audit- ? Internal ear. Audition and ory. ory meatus. equilibration. Ninth: glosso- Jugular. Tongue, phar- Sensory. pharyngeal. ynx, middleear. Stylo-pharyngeus. Taste. Motor. Tenth: pneumo- Jugular. Alimentary, res- Sensory and gastri
Applied anatomy and oral surgery for dental students . Fifth: trifacial. [a) Sphenoiisure. dfis- Ophthalmic. Sensory. (b) Rotundi im. Maxillary. Sensory. (c) Ovale. Mandibular. Sensory. Mo-tor to mus-cles of masti-cation. Sixth: abducens. Sphenoidsure. fis- External rectusmuscle. Motor. Seventh: facial. Stylomastoid. Facial muscles. Motor. Eighth: audit- Internal audit- ? Internal ear. Audition and ory. ory meatus. equilibration. Ninth: glosso- Jugular. Tongue, phar- Sensory. pharyngeal. ynx, middleear. Stylo-pharyngeus. Taste. Motor. Tenth: pneumo- Jugular. Alimentary, res- Sensory and gastric. piratory, and circulatory systems. motor. THE CRANIAL NERVES n N.\iIE. Foramen. Distribution. Function. Eleventh: spinal Jugular. Stemomast o i d IMotor. accessor>-. and trapeziusmuscles. Twelfth: hj-po- Anterior condy- Tongue and Motor. glossal. loid. muscles ofhyoid bone. The Fifth NerveThe fifth or trifacial nerve (Fig. 21) is the greatsensory nerve of the face and head. It also suppUesmotor fibers to the muscles of mastication. The deep. Fig. 21.—The distribution of the three divisions of the fifth nerve fLeidy). origin of the trifacial nerve is from a sensory nucleusand a motor nucleus in the floor of the fourth superficial origin is from the side of the ponsVarolii, where the nerve emerges as an anterior motorand a posterior sensory root. The sensory root term in- 76 APPLIED ANATOMY ates in the Gasserian ganglion, situated at the apex ofthe petrous portion of the temporal bone, within thebrain-case. The motor root passes out through theforamen ovale and joins the sensory portion of themandibular division immediately outside this foramen. The Gasserian or semilunar ganglion is a crescent-shaped structure, with its convexity directed forward,situated in a depression at the apex of the petrousportion of the temporal bone. The ganglion is joinedposteriorly by the sensory root of the trifacial motor root of this nerve does not enter the ganglion
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Keywords: ., bookauthoriv, bookcentury1900, bookdecade1910, booksubjectanatomy
