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Innervation OCF - Coggle Diagram
Innervation OCF
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MANDIBULAR NERVE (CN V3)
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Area of Supply: Mandibular teeth, buccal and lingual gingiva, floor of the mouth, lower lip, and muscles of mastication.
Key Sensory Branches:
Inferior Alveolar Nerve (IAN): Enters the mandibular canal and supplies all Mandibular Teeth. It continues as the Mental Nerve to supply the lower lip and chin.
Lingual Nerve: Provides general sensation (touch, pain, temperature) to the anterior two-thirds of the tongue and the floor of the mouth. (It also carries taste fibers from CN VII).
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Key Motor Branches:
Supplies the Muscles of Mastication (Masseter, Temporalis, Medial and Lateral Pterygoids).
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MAXILLARY NERVE (CN V2)
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Area of Supply: Maxilla, upper teeth, maxillary sinus, nasal cavity, hard palate, and part of the face.
Key Branches:
Posterior Superior Alveolar Nerve (PSAN): Sensory to the Maxillary Molars (except MB root of first molar) and their buccal gingiva.
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Anterior Superior Alveolar Nerve (ASAN): Sensory to the Maxillary Incisors, Canine Teeth, and their buccal gingiva.
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FACIAL NERVE (CN VII)
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Relevant Branches:
Motor Branches to Face: The five terminal branches that supply the muscles of facial expression: Temporal, Zygomatic, Buccal, Mandibular, Cervical (mnemonic: "To Zanzibar By Motor Car").
Chorda Tympani Nerve: Carries the Taste sensation fibers from the anterior two-thirds of the tongue.
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