A 65-Year-Old Amn Is Brought to the Emergency Department After

A 65-year-old amn is brought to the emergency department after he passed away 30 minutes ago. He was shaving his bear and felt a lightheadedness while shaving around his neck. He has a same episode befor when a physician in ER tried to put a neck collar, blood pressure was 70/40 mm Hg and pulse was 45/min during that episode.  Past medical history is significant for hypertension and diet-controlled diabetes mellitus.  The patient is a lifetime nonsmoker and drinks alcohol on social occasions.  On physical examination, his blood pressure is 125/72 mm Hg and pulse is 76/min without orthostatic changes.  Stimulation of afferent sensory fibers in which of the following nerves is most likely responsible for this patient's symptoms?

A) Accessory
B) Glossopharyngeal
C) Hypoglossal
D) Trigeminal
E) Vagus

Correct Answer:

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