Superiorconstrictorof pharynxMiddleconstrictorof pharynxMylohyoidTriangular aperture (oropharyngeal triangle) between mylohyoid,superior constrictor, and middle constrictor
Fig. 8.254 Tongue. A. Paramedian sagittal section. B. Superior view.
AOral part (anterior two-thirds)Foramen cecumand terminal sulcusPharyngeal part (posterior one-third)Hyoid boneRoot of tongueMylohyoid muscleGeniohyoid muscleMandibleInferior surfaceLower lipOral vestibuleFiliform papillaeTerminal sulcusForamen cecumBOropharynxPharyngeal part of tongueVallate papillaeFoliate papillaeFungiform papillae
Fig. 8.255 Muscles of the tongue.
Fig. 8.256 Genioglossus muscles. A. Posterior view. B. Lateral (left) view.
Fig. 8.257 Hyoglossus muscles. A. Posterior view. B. Lateral (left) view.
Fig. 8.258 Styloglossus muscles.
Fig. 8.259 Palatoglossus muscles.
Hard palatePalatine aponeurosisof soft palatePalatoglossus muscle (underliesthe palatoglossusarch of mucosa)Uvula
Fig. 8.260 Arteries, veins, and nerves of the tongue.
Lingual nerve(from [V3])Chorda tympani (from [VII])Hypoglossalnerve [XII]OccipitalarterySternocleidomastoid branch of occipital arteryLingual arteryCommon carotid arteryInternal jugular veinDorsal lingual veinDeep lingual veinHyoglossusGlossopharyngealnerve [IX]
Fig. 8.261 Innervation of the tongue.
Fig. 8.262 Lingual nerve in the floor of the oral cavity (medial view).
Fig. 8.263 Hypoglossal nerve and C1 fibers.
Hypoglossal nerveC1C1 fibersC3C2ThyrohyoidSuperior root ofansa cervicalisNerve to thyrohyoid(C1)GeniohyoidNerve to geniohyoid (C1)
Fig. 8.264 Parotid gland.
MasseterBuccinatorParotid duct(penetrates buccinator oppositecrown of 2nd upper molar tooth)SternocleidomastoidParotid glandExternal acoustic meatus
Fig. 8.265 Submandibular and sublingual glands. A. Medial view. B. Posterior view. C. Anterior view. D. Anterosuperior view.
Superior constrictor musclePterygomandibular rapheSmall ducts of sublingual glandSubmandibular ductSublingual glandSublingual glandSubmandibular ductGenioglossus muscleHyoglossus muscleSuperficialDeepSuperficialDeepSubmandibularglandLingual nerveABSubmandibular ductSublingual fold overlyingsublingual glandSublingual caruncleOpening ofsubmandibular ductOpening of leftsubmandibular ductSublingual carunclesLingual veinFrenulum of tongueOpening of ducts from sublingual glandCDDeep lingual veinFimbriated foldFrenulum of tongue
Fig. 8.266 Summary of parasympathetic (secretomotor) innervation of glands in the head.