new_n_lost
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While a physician is using a water-filled syringe to expel wax from the ear canal of an elderly patient, the man suddenly faints. This event can be explained by the fact that the posterior half of the external ear canal receives sensory innervation from the
A. auricular branch of the vagus nerve
B. auriculotemporal nerve
C. greater auricular nerve
D. lesser occipital nerve
E. vestibulocochlear nerve
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| forumdoctor
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AAAAAAAAAAAAAAAAAAA
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| SILVER
DoWhatYouGotToDo!
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A
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| sss sss
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A 
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| new_n_lost
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FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."
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| new_n_lost
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The correct answer is A.
The vagus nerve, through its auricular branch, supplies the posterior half of the external auditory hiatus. Since the vagus also supplies many chest and abdominal organs, reflex symptoms may occur, including fainting (typically in the elderly), cough, and gagging.
The auriculotemporal nerve (choice B) supplies the anterior half of the external auditory meatus and the facial surface of the upper part of the auricle.
The greater auricular nerve (choice C) supplies both surfaces of the lower part of the auricle.
The lesser occipital nerve (choice D) supplies the cranial surface of the upper part of the auricle.
The vestibulocochlear nerve (choice E) supplies hearing and motion sense
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FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."
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| Jackofknives
Ipwnpoker.com
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heh, it's A. not falling for this again
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