Neurology Quiz #21: Cranial Nerve Anatomy and Pathology

1. A 63-year-old man presents with double vision. On examination, his right eye cannot move laterally, and he is diagnosed with an abducens nerve palsy. Which of the following is the most likely cause of this condition in this patient? 

Question 1 of 5

2. A 45-year-old woman comes to the clinic complaining of difficulty closing her right eye and drooping of the right side of her mouth. Physical examination reveals that she is unable to smile, frown, or raise her eyebrows on the right side. Which of the following cranial nerves is most likely affected? 

Question 2 of 5

3. A patient presents with loss of taste sensation from the posterior one-third of the tongue and a decreased gag reflex. Which cranial nerve is most likely involved? 

Question 3 of 5

4. A 50-year-old man with a history of smoking and alcohol abuse develops difficulty swallowing and hoarseness. On examination, a right-sided vocal cord paralysis is noted. Which of the following nerves is most likely affected?

Question 4 of 5

5. After a dental procedure, a patient complains of numbness in the lower lip and chin. Which branch of the trigeminal nerve is most likely affected? 

Question 5 of 5


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