A manual of anatomy . ions.—Elevates the hyoid bone and depresses the mandible. Nerve Supply.—Mylohyoid branch of the inferior dental nerve(trigeminal). iS6 MYOLOGY The m. geniohyoideus arises from the inferior mental spines (me-dial surface of the symphysis menti) and is inserted into the ventralsurface of the body of the hyoid bone. Actions.—Elevates the hyoid bone and depresses the mandible. Nerve Supply.—First and second cervical nerves through thehypoglossal nerve. LINGtTAL IVrUSCLES The intrinsic muscles are given in the description of the Tongue(page 288). The extrinsic muscles are give
A manual of anatomy . ions.—Elevates the hyoid bone and depresses the mandible. Nerve Supply.—Mylohyoid branch of the inferior dental nerve(trigeminal). iS6 MYOLOGY The m. geniohyoideus arises from the inferior mental spines (me-dial surface of the symphysis menti) and is inserted into the ventralsurface of the body of the hyoid bone. Actions.—Elevates the hyoid bone and depresses the mandible. Nerve Supply.—First and second cervical nerves through thehypoglossal nerve. LINGtTAL IVrUSCLES The intrinsic muscles are given in the description of the Tongue(page 288). The extrinsic muscles are given below. The m. genioglossus is a fan-shaped muscle arising from the supe-rior mental spines; its inferior fibers are inserted into the body of thehyoid bone while the remainder are inseHed into the tongue from itstip to the base, Bod^ of ton^uafvliate papilla j ^ a,{!tiidinal!s /mouse inferiorRoot o/toneue /LvJ^ Oral mucous membrane X Glossopalatinus Styloglossus Sfy/o-p/iaryrtoeus Greater cornu offiuoid bone. Thijreoh^oideus ? Mandible CenioolossusGeniohyoideusHuoolossus?ffuoid bone (bodu)?Hyothifreoid membrane Fig. 123.—The superficial layer of the musculature of the tongue seen from the right mandible has been divided immediately to the right of the median line. {SoboUaand McMurrich.) Actions.—Elevates the hyoid bone, depresses the mandible andassists in protracting, retracting and depressing the tongue. Nerve Supply.—Hypoglossal nerve. The m. hyoglossus arises from the body and greater cornu of thehyoid bone and is inserted into the side of the tongue. Actions.—Elevates the hyoid bone and depresses the tongue. Nerve Supply.—Hypoglossal nerve. The m. styloglossus arises from the tip of the styloid process andthe stylohyoid ligament and is inserted into the side and inferiorsurface of the tongue, decussating with the mm. hyoglossus and theglossopalatinus. Actions.—Elevates the tongue and assists in retracting the tongue. Nerve Supply.—Hypogloss
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecthumananatomy, bookyea
