Dillon MCQ 20

Topic: Anatomy

Created on Saturday, November 26 2022 by dillon

Last modified on Saturday, November 26 2022.

 
        A) Up
 
        B) Left
 
        C) Right
 
        D) Down
 

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) up

This answer is incorrect.

L/R frontal eye fields are not involved with vertical gaze  (See References)

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B) Left

This answer is correct.

The eyes will deviate in the direction of the lesion, so a lesion to the left frntal eye field will direct the gaze to left, resulting from the inability to look to the right  (See References)

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C) Right

This answer is incorrect.

The frontal eye fields direct the eyes in the opposing direction. So, damage to the right frontal eye field will weaken a gaze to the left, causing the eyes to stray to the right   (See References)

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D) Down

This answer is incorrect.

L/R frontal eye fields are not involved with vertical gaze  (See References)

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References:

1. Vanderah, Todd W., and John Nolte. “Ch. 21 Eye Movements” Nolte's Essentials of the Human Brain, Elsevier, Philadelphia, PA, 2019.

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anatomy
Dillon MCQ 20
Question ID: 112622056
Question written by dillon. (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 11/26/2022
Modified: 11/26/2022
Estimated Permutations: 24