Foramen spinosumInfratemporal crestForamen ovaleTensor veli palatiniLevator veli palatiniAlveolar foramenLateral plate of pterygoid processPterygomaxillary fissure(leading into pterygopalatine fossa)Posterior surface of maxillaPterygopalatine fossaGreater wing of sphenoid boneMasseterMylohyoidHyoglossusMiddle constrictorSuperior constrictorPharynxSpine of sphenoidHead and neck of mandiblePetrotympanic fissurePterygomandibular raphe
Fig. 8.146 Medial pterygoid muscle.
Foramen spinosumInfratemporal crestForamen ovaleTensor veli palatiniLevator veli palatiniDeep headmedial pterygoidSuperficial headmedial pterygoidSpine of sphenoidPetrotympanic fissureLingulaMandibular canalSphenomandibular ligament
Fig. 8.147 Lateral pterygoid muscle.
Infratemporal crestUpper head of lateral pterygoidDeep head medial pterygoidSuperficial headmedial pterygoidLower headlateral pterygoidCapsuleArticular discSphenomandibular ligament
Fig. 8.148 Mandibular nerve [V3]—anterior trunk. Meningeal branch and nerve to medial pterygoid.
Deep headmedial pterygoidTrigeminal ganglionUpper head lateral pterygoid (cut )Lower head lateral pterygoid (cut )Nerve to medial pterygoidBranch to tensor veli palatiniMeningeal branchPosterior trunkBranch to tensor tympaniAnterior trunkDeep temporal nervesBuccal nerveNerve to lateral pterygoidMasseteric nerve
Fig. 8.149 Mandibular nerve [V3]—posterior trunk. A. Lateral view.
B. Anterior view. C. Anteromedial view.
Petrotympanic fissureChorda tympani nerveLingual nerveAIncisive nerveMental nerveNerve to mylohyoidInferior alveolar nerveAuriculotemporal nerve
Medial pterygoidmuscleLingulaLingual nerveMental nerveIncisive nerveInferior alveolar nerveSphenomandibular ligamentChorda tympaniInferior alveolar nerveSphenomandibular ligamentSuperior constrictor muscleSubmandibular ganglionNerve to mylohyoidGreater horns of hyoid boneHyoglossus muscleGenioglossus muscleGeniohyoid muscleLingual nerveTemporalis tendonPterygomandibular raphe (cut )Buccal nerve (branch of anterior trunk)BCFacial nerve [VII]Trigeminal nerve [V]Mandibular nerve [V3]
Fig. 8.150 Chorda tympani and lesser petrosal nerves. A. Course after emerging from the skull. B. Course of parasympathetic fibers.
APetrotympanic fissureChorda tympani nerve from [VII]Lesser petrosal nerve [IX]Lingual nerveOtic ganglion (medial to [V3])TongueLingual nerveSublingual glandMylohyoidSubmandibular glandSubmandibular ganglionPreganglionic parasympathetic fibers from glossopharyngeal nerve [IX]Postganglionic parasympathetic fibers from otic ganglionPreganglionic parasympathetic fibers from facial nerve [VII]Postganglionic parasympathetic fibers from submandibular ganglionAuriculotemporal nerveTop of parotid glandAuriculotemporal nerve