Re: Lecture 63: Infratemporal Fossa, Temporomandibular Joint, Submandibular and Otic Ganglia - True False

Comments:
: : Lecture 63 : : 1. The lesser superficial petrosal nerve is part of a somatic plexus whereas the buccal nerve is part of an autonomic trunk. : : - false ⇒ LSPN from tympanic plexus. Correct. Goofy question. : : 2. The masseteric nerve passes through the mandibular notch. : : - true. Correct. : : 3. The posterior superior alveolar nerve branches from the maxillary nerve within the pterygopalatine fossa and enters the infratemporal fossa through the pterygomaxillary fissure. : : - true. Correct : : 4. The buccal nerve passes the lateral aspect of the masseter muscle. : : - false. Correct : : 5. The chorda tympani joins onto the inferior alveolar nerve before distributing to the anterior 2/3 of the tongue. : : - false. Correct. : : 6. Postganglionic fibers from the otic ganglion join onto; first the chorda tympani, and then the lingual nerve. : : - false ⇒ otic ganglion to parotid (so auriculotemporal). Correct. Auriculotemporal and then facial. : : 7. A lesion of the chorda tympani within the infratemporal fossa is expected to decrease sensitivity of touch to the posterior 1/3 of the tongue as well as decrease lacrimation. : : - false ⇒ anterior aspect. Correct. no effect on lacrimation. : : 8. A lesion of the lingual nerve within the floor of the mouth is expected to disrupt both taste and touch to the anterior 2/3 of the tongue. : : - true. Correct. : : 9. The mouth is apt to be stuck open if the condyle of the mandible slips forward to the articular tubercle. : : - true. Correct. Transverse axis move anterior. : : 10. The left body of the mandible is one on the most commonly broken bones in males. : : - true. Correct. : : 11. The inferior alveolar nerve contributes to the inferior dental plexus and then continues onto the face as the mental nerve. : : - true. Correct. : : 12. The nerve to the mylohyoid conveys GSE fibers to the mylohyoid muscle and SVE fibers to the anterior belly of the digastric. : : - false ⇒ should both be SVE fibers. Correct. : : 13. The buccal nerve conveys SVE and GSA fibers to the buccinator muscle. : : - true. False. GSA only. SVE is facial. : : 14. The middle meningeal artery passes from the infratemporal fossa through the foramen spinosum to then be in the anterior cranial fossa. : : - false ⇒ middle cranial fossa. Correct. : : 15. The inferior alveolar nerve encircles the middle meningeal artery. : : - false ⇒ auriculotemporal encircles MMA. Correct. : : 16. The posterior superior alveolar artery does not enter the pterygopalatine fossa despite that the nerve of the same name is within this fossa. : : - true. Correct. : : 17. The medial pterygoid muscle arises from the medial pterygoid plate whereas the lateral pterygoid muscle arises from the lateral pterygoid plate. : : - false ⇒ medial pterygoid comes from LTP. Correct. : : 18. The hamulus is an inferior extension of the lateral pterygoid plate. : : - false ⇒ medial pterygoid plate. Correct. : : 19. The maxillary artery passes from the infratemporal fossa to the pterygopalatine fossa whereas the maxillary nerve does not enter the infratemporal fossa. : : - false. Incorrect! This is true. : : 20. The lingula of the mandible is a site of attachment for the pterygomandibular raphe. : : - false. Correct. : : 21. The hamulus of the medial pterygoid plate is a site of attachment for the sphenomandibular ligament. : : - false ⇒ pterygomandibular ligament. Correct. : : 22. The groove for the mylohyoid nerve proceeds inferior and anterior from the mandibular foramen : : - true. Correct. : : 23. A lesion of the lesser superficial petrosal nerve is expected to cause ipsilateral salivatory deficits. : : - true. Correct. : : 24. A lesion of the lingual nerve at the foramen ovale is expected to disrupt touch (GSA) but not taste (SVA) to the anterior 2/3 of the tongue. : : - true. Correct. : : 25. A lesion of the auriculotemporal nerve just medial to the neck of the mandible is expected to cause a salivary deficit. : : - true. Correct. Communicating GVE are lateral to neck. : : 26. The sympathetic root of the otic ganglion is derived from the external carotid plexus (middle meningeal plexus). : : - true. Correct. From middle meningeal plexus.

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