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DA 115 Oral Anatomy
Nerves of the Face and Neck
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4 Cranial nerves are in the face and oral cavity
• Trigeminal• Facial• Glossopharyngeal• Hypoglossal
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Trigeminal Nerve
• 1. Largest• 2. Runs through the
Mandibular and Maxillary
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MAXILLARY NERVE
• IS DIVIDED INTO FOUR BRANCHES
1. Zygomatic 2. Infraorbital3. Posterior Superior Alveolar4. Pterygopalatine
Is a sensory nerve.
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Maxillary Nerve Branch
Zygomatic Nerve Supplies • Area around the eye• Behind the Zygomatic
arch (cheek bone)
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Maxillary Nerve Branch
INFRORBITAL NERVE SUPPLIES • Side walls of the Max.
Sinus• Gingiva• Mesial buccal root of
the fist molar and bicuspids
• Cuspids• Laterals• Centrals
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Posterior Superior Alveolar Nerve Supplies
• Gingiva• Maxillary Sinus• Cheeks• Maxillary molars
(except the mesial buccal root of 1st molar)
Maxillary Nerve Branch
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Mandibular Nerve Branch
• Is the Largest Division of the Trigeminal Nerve
• Has both sensory and motor neurons• Is divided into three branches * Buccal * Lingual * Inferior Alveolar
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Mandibular Nerve Branch
• Buccal Nerve Branch
• Supplies
Buccal mucosaBuccal GingivaBuccal of the mand.
Molars
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Mandibular Nerve Branch
• Lingual Nerve Branch
• Supplies• Floor of the mouth• Top of the tongue• Taste buds • Lingual Gingiva
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Mandibular Nerve Branch
• Inferior Alveolar Nerve
• Supplies• Mylohyoid muscle• Mandibular canal• Mandibular teeth • Chin• Lower lip