An otherwise healthy 45-year-old man comes to the physician because of a painful ulcer on his tongue for 3 days. Examination shows a shallow, tender 5-mm wide ulcer on the lateral aspect of the tongue, adjacent to his left first molar. There is no induration surrounding the ulcer or cervical lymphadenopathy. A lesion of the cranial nerve responsible for the transmission of pain from this ulcer would most likely result in which of the following?
ALoss of taste from the supraglottic region
BLateral deviation of the tongue
CInability to wrinkle the forehead
DDecreased sensation in the upper lip
ELoss of sensation in the anterior two-thirds of the tongue
A 54-year-old man is brought to the emergency department 30 minutes after being hit by a car while crossing the street. He had a left-sided tonic-clonic seizure and one episode of vomiting while being transported to the hospital. On arrival, he is not oriented to person, place, or time. Physical examination shows flaccid paralysis of all extremities. A CT scan of the head is shown. This patient's symptoms are most likely the result of a hemorrhage in which of the following structures?
ABetween the dura mater and the arachnoid mater
BInto the cerebral parenchyma
CBetween the skull and the dura mater
DBetween the arachnoid mater and the pia mater
EInto the ventricular system
A 55-year-old woman with a 1-year history of left-sided tinnitus is diagnosed with a tumor at the left cerebellopontine angle affecting the glossopharyngeal nerve. Sialometry shows decreased production of saliva from the left parotid gland. The finding on sialometry is best explained by a lesion of the nerve that is also responsible for which of the following?
AProtrusion of the tongue
BAfferent limb of the cough reflex
CAfferent limb of the gag reflex
DEquilibrium and balance
ETaste sensation of tip of the tongue
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