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Zoe MCQ 06

Topic: Anatomy

Created on Saturday, November 26 2022 by zoe

Last modified on Saturday, November 26 2022.

The MRI of a patient reveals a lesion at the brachium of the inferior colliculus. This patient now has problems with sound localization and auditory reflexes. What nucleus is downstream from this lesion?

 
        A) Lateral geniculate nucleus
 
        B) To the superior colliculus
 
        C) Medial geniculate nucleus
 
        D) Back to inferior colliculus
 

 


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This question was created on November 26, 2022 by zoe.
This question was last modified on November 26, 2022.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) Lateral geniculate nucleus

This answer is incorrect.


The brachium of the inferior colliculus is a broad, low ridge extending rostrally from the inferior colliculus → continuation of the ascending auditory pathway, projecting from the inferior colliculus → thalamic relay nucleus for hearing (the medial geniculate nucleus).  (See References)

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B) To the superior colliculus

This answer is incorrect.


The brachium of the inferior colliculus is a broad, low ridge extending rostrally from the inferior colliculus → continuation of the ascending auditory pathway, projecting from the inferior colliculus → thalamic relay nucleus for hearing (the medial geniculate nucleus).  (See References)

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C) Medial geniculate nucleus

This answer is correct.


The brachium of the inferior colliculus is a broad, low ridge extending rostrally from the inferior colliculus → continuation of the ascending auditory pathway, projecting from the inferior colliculus → thalamic relay nucleus for hearing (the medial geniculate nucleus).  (See References)

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D) Back to inferior colliculus

This answer is incorrect.


The brachium of the inferior colliculus is a broad, low ridge extending rostrally from the inferior colliculus → continuation of the ascending auditory pathway, projecting from the inferior colliculus → thalamic relay nucleus for hearing (the medial geniculate nucleus).  (See References)

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References:

1. Nolte Chapter 11: Page 262
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anatomy
Zoe MCQ 06
Question ID: 112622078
Question written by zoe. (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 11/26/2022
Modified: 11/26/2022
Estimated Permutations: 24

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