Pharynx · NEET PG Preparation ENT
A 45-year-old man presents with severe intractable otalgia referred from a silent mucosal lesion in the pharynx. The sensory innervation of the mucou…
Practice question from Pharynx (NEET PG Preparation ENT), with the correct answer and a step-by-step solution.
medium · MCQ · Q-852DC0
A 45-year-old man presents with severe intractable otalgia referred from a silent mucosal lesion in the pharynx. The sensory innervation of the mucous membrane of the nasopharynx is primarily supplied by which of the following nerves?
- A.Maxillary nerve (CN V2) via the pharyngeal branchCorrect answer
- B.Mandibular nerve (CN V3) via the lingual branch
- C.Facial nerve (CN VII) via the greater petrosal nerve
- D.Vagus nerve (CN X) via the internal laryngeal nerve
Solution
The sensory supply to the nasopharynx is mainly from the pharyngeal branch of the maxillary nerve (CN V2), derived from the pterygopalatine ganglion. The oropharynx is supplied by CN IX, and the laryngopharynx (hypopharynx) by CN X.
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