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A comprehensive overview of cranial nerves, focusing on the trigeminal nerve and its branches. It includes detailed information about the anatomy, function, and innervation of various nerves related to dental procedures. The document also presents a series of questions and answers related to the topic, making it a valuable resource for students studying dental anatomy and nerve blocks.
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Local Exam #2 Questions With Complete Solutions Cranial nerve I Olfactory Cranial nerve II Optic Cranial nerve III Oculomotor Cranial nerve IV Trochlear Cranial nerve V Trigeminal Cranial nerve VI Abducens Cranial nerve VII Facial Cranial nerve VIII Vestibulocochlear Cranial nerve IX
Glossopharyngeal Cranial nerve X Vagus V2 branch of trigeminal nerve maxillary (afferent sensory) V3 branch of trigeminal nerve mandibular (mixed afferent and efferent sensory and motor) V2 branches include infraorbital, ASA, MSA, PSA, greater and lesser palatine, nasopalatine nerves V3 branches include Buccal, lingual, mental, incisive, inferior alveolar, and mylohyoid nerves infraorbital nerve sensation for upper lip, lower eyelid, and side of nose infraorbital nerve passes through infraorbital sulcus, which becomes the canal and terminates at the infraorbital foramen Where does the infraorbital nerve terminate? infraorbital foramen
soft palate and palatine tonsillar tissues Where does the lesser palatine nerve enter lesser palatine foramen near pterygoid process Nasopalatine nerve is sensation for anterior hard palate and lingual gingiva of maxillary teeth The nasopalatine nerve enters beneath the incisive papilla and travels along the nasal septum The buccal nerve is located skin of the cheek, buccal mucosa, surface of the buccinator muscle What does the buccal nerve sensation do? buccal gingiva of mandibular posterior teeth Lingual nerve is located slightly medial to inferior alveolar nerve lingual nerve is sensory for body of tongue, floor of mouth, and lingual gingiva of mand teeth Mental nerve provides sensory to chin, lower lip, and labial mucosa of mandibular premolars and anterior teeth
What nerve does the mental nerve merge with to form the IA nerve? incisive nerve Where does the mental nerve and incisive nerve enter mental foramen on anterior surface of the mandible near 1st and 2nd premolar apicies incisive nerve is sensory for mandibular premolars and anterior teeth pulp tissue inferior alveolar nerve is sensory for mandibular teeth Where does the Inferior alveolar nerve exit? mandibular foramen on the lingual surface of the ramus mylohyoid nerve is efferent for mylohyoid muscle and anterior belly of digastric muscle mylohyoid nerve is afferent for mandibular nerve for mandibular 1st molar if IA nerve block fails Absolute Contraindications drug should not be administered under any circumstances Relative Contraindications
the biotransformation of lidocaine in the liver Supraperiosteal injection used for pulpal anesthesia in max teeth, anesthetized large terminal branches of dental plexus Injection site for MSA Height of the mucobuucal fold at the apex of the maxillary 2nd premolar injection site for PSA Height of mucobuccal fold at the apex of the maxillary 2nd molar Injection site for ASA height of the mucobuccal fold at the canine eminence (more mesial) Injection site for greater palatine nerve block into soft tissue slightly anterior to greater palatine foramen where does the greater palatine nerve block anesthetize? palatal soft tissue distal and medially to canine injection site for nasopalatine nerve block palatal mucosa lateral to incisive papilla where does the nasopalatine nerve block anesthetize?
anterior portion of hard palate from mesial of left premolar to mesial of right premolar inferior alveolar nerve block (IANB) injection site mucous membrane into the pterygomandibular raphe and occlusal plane of mandibular teeth long buccal nerve block injection site muccobuccal fold of mandible distal to the most molar tooth in the arch (2nd molar) Gow-Gates injection site mucous membrane mesial of the ramus, on a line from the intertragic notch to the corner of the mouth, distal to maxillary 2nd molar Vazirani-Akinosi injection site soft tissue on the medial (lingual) border of ramus as the inferior alveolar, lingual ad mylohyoid nerves run inferiorly from the foramen ovale toward the mandibular foramen Mental nerve block injection site muccobuccal fold at or anterior to mental foramen (between 1st and second premolar)
