NBME 20 Answers ↦
I didn't even think about the motor part during the question, but it might be related to the homonculus (FA 2020 pg 502). Motor and sensory areas of the lower face generally fall towards the lower half of the brain. Answers B/C/D would probably show some hand or arm involvement.
I know this isnt a great answer, but I was assuming that they wanted us to "play the game" and decide broca/wernicke. It seems set up for us answering that type of question. Going off buzzwords like "fluency", "phrase length", "comphrension".
Why would B be incorrect? I realize Broca is "technically lower" but A seems too low to be causing weakness of the lower 2/3 of the face? Am I missing something?
@breis, per UW: "a/w r. hemiparesis (face & UE) bc close to primary motor cortex"
B is also close to frontal eye field; eyes look toward the lesion
FA pg. 499
I incorrectly picked C. When answering this, Broca's "broken speech" was my first thought, but I figured a lesion causing a facial droop would have to involve the motor strip so I prioritized that and chalked up the speech issue to dysarthria (I understand this is more of a "slurred speech" than broken, abrupt speech, but again, I simply misprioritized concepts.). So for the record, Broca area is part of the motor cortex?