Step I Labeling Cranial Nerves

Started by shigella123
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shigella123

shigella123

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10+ Year Member
Did I label it correctly? I attached the picture to this post.

A-3- Oculomotor
B-5- Trigeminal
C-6- Abducens
D-8- Vestibulococlear ---or Facial?
E-9- Glossopharyngeal?
F-12- Hypoglossal
G-11- Accessory
 
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shigella123 said:
Did I label it correctly? I attached the picture to this post.

A-3- Oculomotor
B-5- Trigeminal
C-6- Abducens
D-8- Vestibulococlear ---or Facial?
E-9- Glossopharyngeal?
F-12- Hypoglossal
G-11- Accessory
/QUOTE]


Sorry, it didn't get attached to the post the first time, but here it is.
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I'm not going to verify them because I'm lazy and would have to look it up, but for anyone viewing this thread, I had either 2 or 3 questions that required this exact thing on the real deal fwiw
 
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loveoforganic2 said:
I'm not going to verify them because I'm lazy and would have to look it up, but for anyone viewing this thread, I had either 2 or 3 questions that required this exact thing on the real deal fwiw
Click to expand...

Thanks for letting us know this was on your exam... It did confuse me when I was taking the NBME since the nerves are so close to each other, but I was able to get it right. So, I wanted to label all of them to make sure I don't get confused in future again and lose such easy points. I just wanted to get these checked, but I guess it is little time consuming. I looked up multiple other similar google pics to compare this one so that helped.
 
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It looks like you're correct on A,B, and C. But looking at it I would say D is Facial and E is Vestibulocochlear because they both arise on the pons from the pontomedullary junction-whereas glossopharyngeal arises from the medulla exclusively. From there it's really hard to tell because some of the nerves are destroyed, but F looks more like Vagus than Hypoglossal to me because the fibers are arising from between the olive and inferior cerebellar peduncle-hypoglossal is more between the olive and pyramids, but its really hard to tell where its coming from. Same goes for G, but I would guess based on how high it is that it is glossopharyngeal. As Don Juan said XI is going to arise from lower, so I don't think it's that.
 
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