Purpose Statement BY THE END OF THIS LECTURE THE STUDENT MUST BE ABLE TO Enumerate various nerves s that supply the oral cavity that is Lips Buccal mucosa Palate Tongue Floor of mouth Gingiva ID: 1047478
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1. NERVE SUPPLY OF ORAL CAVITY
2. Purpose StatementBY THE END OF THIS LECTURE THE STUDENT MUST BE ABLE TO-Enumerate various nerves s that supply the oral cavity that is-LipsBuccal mucosaPalateTongue Floor of mouthGingivaTeeth
3. Learning Objectives At the end of the lecture the student should be able toS.N.Learning Objectives Domain LevelCriteria Condition 1Enumerate various nerves s that supply the oral cavity Cognitive Must KnowAll
4. LIPSSensory Nerves of the Lips-The sensory nerves of the upper and lower lips are from the infraorbital and mental nerves, which are branches of the maxillary (CN V2) and mandibular (CN V3) nerves.
5. Buccal mucosaSensory Nerves of the buccal mucosa-These are branches of the maxillary and mandibular nerves. They supply the skin of the cheeks and the mucous membrane lining the cheeks.
6. PALATENerves of the Palate -The sensory nerves of the palate, which are branches of the pterygopalatine ganglion, are the greater and lesser palatine nerves. They accompany the arteries through the greater and lesser palatine foramina, respectively.
7. The greater palatine nerve supplies the gingivae, mucous membrane, and glands of the hard palate. The lesser palatine nerve supplies the soft palate.
8. Another branch of the pterygopalatine ganglion, the nasopalatine nerve, emerges from the incisive foramen and supplies the mucous membrane of the anterior part of the hard palate.
9. TongueAnterior 2/3 of tongue- Motor Innervation- All muscles by hypoglossal nerve (CN XII) except palatoglossus muscle (by the pharyngeal plexus) General Sensory Innervation- Lingual nerve (branch of mandibular nerve CN V3)
10. Posterior 1/3rd-Glossopharyngeal nerve (CN IX)Special Sensory Innervation- Chorda tympani nerve (branch of facial nerve) Posterior 1/3rd- Glossopharyngeal nerve (CN IX)
11. Floor of mouthThe floor of mouth is supplied by- Lingual branch of trigeminal nerve.Hypoglossal nervePharyngeal branch of Vagus nerve
12. gingivaThe gingiva is well innervated,Different types of nerve endings such as the Meissner or Krause corpuscules end bulbs, loops or fine fibers that enter the epithelium as ultraterminal fibers supply it with sensory impulses.
13. teethThe abudant nerve supply in the pulp of teeth in the oral cavity.The peripheral axons form a network of nerves locatrd adajacent to cell rich zone. This is termed as the parietal layer of nerves also known as plexus of Raschkow.
14. Muscles Nerve Location and functionEpicranius: Frontalis and Occipitalisfacial nerveeyebrows and scalpOrbicularis orisfacial nervecloses lipsZygomaticus majorfacial nervesmilingZygomaticus minorfacial nervesmilingLevator labii superiorisfacial nerveupper lipLevator labii superioris alaeque nasifacial nerveupper lipDepressor labii inferiorisfacial nervelower lipDepressor anguli orisfacial nervefrowningPlatysmafacial nervefrowning (during fear or shock)Buccinatorfacial nervecheeksMentalisfacial nervechinPlatysmafacial nervefrowningOrbicularis oculifacial nervecloses eyeNasalisfacial nerveflare nostrilsLevator palpebrae superiorisoculomotor nerveupper eyelidMasseterTrigeminal nerveclosing and protruding mandible,TemporalisTrigeminal nerveelevates and controls side to side movement of mandibleMedial pterygoidTrigeminal nerveelevates mandible,Lateral pterygoidTrigeminal nerveprotracts mandible, opens mouth.Genioglossushypoglossal nerveprotraction,Styloglossushypoglossal nerveelevation and retraction,Hypoglossushypoglossal nervedepresses tonguePalatoglossusPharyngeal plexus, pharyngeal branch of vagus nerveelevates tongue while swallowingDigastricTrigeminal nerve and Facial nervehyoid and mandible movementStylohyoidFacial nerveelevates hyoidMylohyoidTrigeminal nervehyoid and mandible movementGeniohyoidCervical nerve C-1hyoid, tongue, and mandible movementSternocleidomastoidAccessory nervenodding and turningMuscles Nerve Location and functionEpicranius: Frontalis and Occipitalisfacial nerveeyebrows and scalpOrbicularis orisfacial nervecloses lipsZygomaticus majorfacial nervesmilingZygomaticus minorfacial nervesmilingLevator labii superiorisfacial nerveupper lipLevator labii superioris alaeque nasifacial nerveupper lip
15. Muscles Nerve Location and functionEpicranius: Frontalis and Occipitalisfacial nerveeyebrows and scalpOrbicularis orisfacial nervecloses lipsZygomaticus majorfacial nervesmilingZygomaticus minorfacial nervesmilingLevator labii superiorisfacial nerveupper lipLevator labii superioris alaeque nasifacial nerveupper lipDepressor labii inferiorisfacial nervelower lipDepressor anguli orisfacial nervefrowningPlatysmafacial nervefrowning (during fear or shock)Buccinatorfacial nervecheeksMentalisfacial nervechinPlatysmafacial nervefrowningOrbicularis oculifacial nervecloses eyeNasalisfacial nerveflare nostrilsLevator palpebrae superiorisoculomotor nerveupper eyelidMasseterTrigeminal nerveclosing and protruding mandible,TemporalisTrigeminal nerveelevates and controls side to side movement of mandibleMedial pterygoidTrigeminal nerveelevates mandible,Lateral pterygoidTrigeminal nerveprotracts mandible, opens mouth.Genioglossushypoglossal nerveprotraction,Styloglossushypoglossal nerveelevation and retraction,Hypoglossushypoglossal nervedepresses tonguePalatoglossusPharyngeal plexus, pharyngeal branch of vagus nerveelevates tongue while swallowingDigastricTrigeminal nerve and Facial nervehyoid and mandible movementStylohyoidFacial nerveelevates hyoidMylohyoidTrigeminal nervehyoid and mandible movementGeniohyoidCervical nerve C-1hyoid, tongue, and mandible movementSternocleidomastoidAccessory nervenodding and turningMuscles Nerve Location and functionDepressor labii inferiorisFacial nerveLower lipDepressor anguli orisfacial nervefrowningPlatysmafacial nervefrowning (during fear or shock)Buccinatorfacial nervecheeksMentalisfacial nervechinPlatysmafacial nervefrowning
16. Muscles Nerve Location and functionOrbicularis orisFacial nervecloses eyeMasseterTrigeminal nerveclosing and protruding mandible,TemporalisTrigeminal nerveelevates and controls side to side movement of mandibleMedial pterygoidTrigeminal nerveelevates mandible,Lateral pterygoidTrigeminal nerveprotracts mandible, opens mouth.GenioglossusHypoglossal nerveprotraction,StyloglossusHypoglossal nerveelevation and retraction,
17. Muscles Nerve Location and functionHypoglossusHypoglossal nervedepresses tonguePalatoglossusPharyngeal plexus, pharyngeal branch of vagus nerveelevates tongue while swallowingDigastricTrigeminal nerve and Facial nervehyoid and mandible movementStylohyoidFacial nerveelevates hyoidMylohyoidTrigeminal nervehyoid and mandible movementGeniohyoidCervical nerve C-1hyoid, tongue, and mandible movementSternocleidomastoidAccessory nervenodding and turning
18. Summary Enumerate various nerves s that supply the oral cavity that is-LipsBuccal mucosaPalateTongue Floor of mouthGingivaTeeth
19. BIBLIOGRAPHYColor Atlas And Text Book Of Oral Anatomy, Histology Berkovitz, B. 1ST edition.Oral Development and Histology Avery, j. K.1st edition.Oral Histology : Development, Structure and Function Tencate, 4th edition.Dental Embryology, Histology & Anatomy. Marry Bath- Balogh Inergaret. 2nd edition.
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