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neuro4c Flashcards

1
Q

lesions of the MLF produce what?

A

internuclear ophthalmoplegia (INO)

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2
Q

characteristics of a left INO

A

inability to adduct the left eye in right lateral gaze, plus nystagmus of the abducting right eye

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3
Q

bilateral INOs seen when

A

Wernicke’s encephalopathy, botulism, myasthenia gravis, brainstrem strokes, and demyelination

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4
Q

One-and-a-half syndrome

A

occurs as a consequence of lesion of PPRF or 6th nerve nuc and adjacent ipsilateral MLF

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5
Q

symptoms of one and a half syndrome

A

ipsilateral gaze palsy and INO on the contralateral side

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6
Q

PPRF

A

paramedian pontine reticular formation; acts as the horizontal gaze center; activates the abducens nuc in response to supranuclear gaze commands

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Neuro (43 decks)

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