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Swallowing and taste from the posterior one-third of the tongue
🔺 The glossopharyngeal nerve (cranial nerve IX) is primarily responsible for swallowing and carrying taste sensations from the posterior one-third of the tongue.
🔺 It also contributes to the gag reflex, salivation from the parotid gland, and monitoring of blood pressure via the carotid sinus.
🔺 It does not control hearing (cranial nerve VIII), smell (cranial nerve I), or vision (cranial nerve II).
🔺 Facial movements are controlled by the facial nerve (cranial nerve VII), not glossopharyngeal.
🔺 This nerve plays a dual role in both sensory and motor functions, making it essential for safe swallowing and taste perception.
This question is from BIOS252 Week 5 Exam 2-Chamberlain University which contains 19 questions.
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