Upward Gaze

Topic: Anatomy

Created on Sunday, February 1 2009 by dr. no

Last modified on Sunday, February 1 2009.

 
        A) Dominant parietal lobe
 
        B) Thalamus
 
        C) Midbrain tectal region
 
        D) Lower Pons
 
        E) Non-dominant parietal lobe
 

 

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This question was created on February 01, 2009 by dr. no.
This question was last modified on February 01, 2009.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) Dominant parietal lobe

This answer is incorrect.

A lesion producing these findings occurs in the midbrain tectal region. It usually occurs by extra-axial compression on the quadrigeminal plate. These findings are consistent with Parinaud's syndrome  (See References)

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B) Thalamus

This answer is incorrect.

A lesion producing these findings occurs in the midbrain tectal region. It usually occurs by extra-axial compression on the quadrigeminal plate. These findings are consistent with Parinaud's syndrome  (See References)

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C) Midbrain tectal region

This answer is correct.

A lesion producing these findings occurs in the midbrain tectal region. It usually occurs by extra-axial compression on the quadrigeminal plate. These findings are consistent with Parinaud's syndrome  (See References)

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---

D) Lower Pons

This answer is incorrect.

A lesion producing these findings occurs in the midbrain tectal region. It usually occurs by extra-axial compression on the quadrigeminal plate. These findings are consistent with Parinaud's syndrome  (See References)

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---

E) Non-dominant parietal lobe

This answer is incorrect.

A lesion producing these findings occurs in the midbrain tectal region. It usually occurs by extra-axial compression on the quadrigeminal plate. These findings are consistent with Parinaud's syndrome  (See References)

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References:

1. Leigh, R.J., and Zee, D.S. (2006). The Neurology of Eye Movements, 4th Edition. Oxford University Press, Oxford. (ISBN:0195300904)

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anatomy
Upward Gaze
Question ID: 020109085
Question written by dr. no. (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 02/01/2009
Modified: 02/01/2009
Estimated Permutations: 120