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NBME 23 Answers

nbme23/Block 4/Question#50 (reveal difficulty score)
A 48-year-old man has complete loss of ...
Area labeled โ€˜Cโ€™ (Cranial nerve 8: vestibulocochlear) ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–

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submitted by โˆ—seagull(1931)
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thWa a btreeilr rtupice. yThe eyth derovec up atpr fo ti twhi in.sle TFW

sympathetikey  Agreed. +18
catch-22  Start at the pontomedullary junction and count from superior to inferiorly (or medially to laterally): VI, VII, VIII, IX. +3
yotsubato  I looked at the left side (cause the nerves arent frazzled up). Saw 7 and 8 come out together nicely. Then picked the right sided version of 8 +15
lolmedlol  why is it not H or I on the right side; the stem says he has hearing loss on the right side, so the lesion should be ipsilateral no? +3
catch-22  You're looking at the ventral aspect of the brainstem. +11
catch-22  ^Also, you know it's the ventral aspect because you can see the medullary pyramids. +1
amarousis  think of the belly of the pons as a pregnant lady. so you're looking at the front of her +6
hello  which letter is CN IX in this diagram? +
miriamp3  there is no VI nerve. That's the thing. The VI nerve should be in the angle between the pons and the medulla. Parallel to the pyramid. It goes V then VII and then VIII. I make the same mistake and I thought it was the picture but there is no VI par in the photo. They know We count from superior to inferior. +
jesusisking  Don't G and H lowkey look like VII and VIII? I chose H b/c of that +
ljennetten  G and H are CN VII and VIII on the left side, while this guy has right sided hearing loss. CN VI is not labeled in this photo, but is the smaller nerve that arises medial to CN VII and us cut most of the way up the pons. +1
prolific_pygophilic  Mother Fuckers took this with a disposal camera then deep fried it. What is this grainy ass picture +1
soccerfan23  There's over a million pics of the brainstem on the internet and of course, the NBME picked the worst quality, most blurry one for this Q. +

submitted by โˆ—isaacyo94(13)
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I llacatuy nkiht I onudf het atexc saem gmiae ni crool nda lyufl adn IIVI is alelbed sa C et800c4ur5cdo/o5cf5t8c91db64/b8ef0tednpsa482n.1//c04tou93d7e82e9iblee6ey6.7:h83c

makingstrides  If they have one in color, and these exams are online, how come they don't just put the color ? +

submitted by โˆ—abhishek021196(117)
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submitted by 123ojm(11)
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Whcih recuttsur is tltere F nipogtni to in eth ?miaagrd

andro  Cerebral Peduncles +2

submitted by โˆ—hello(429)
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whchi trelte is CN IX ni shit ga?amrdi

titanesxvi  A think is D, but it is not very clear +2
usmlecharserssss  A WHAT anatomical structure is this ???????? +

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