Anatomy & Histology · single question
Which cranial nerve does NOT play a role in swallowing (deglutition)?
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Correct answer: D. CN XI (Spinal accessory)
CN XI (Spinal Accessory) = innervates SCM and trapezius — DOES NOT participate in swallowing. Deglutition involves: CN V (jaw muscles), CN VII (buccinator, orbicularis oris), CN IX (pharyngeal muscles), CN X (pharyngeal/laryngeal/esophagus), CN XII (tongue movements).
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