Fish MCQ 16

Topic: Anatomy

Created on Friday, July 27 1973 by fish

Last modified on Friday, July 27 1973.

 
        A) Movement of ipsilateral inferior rectus
 
        B) Movement of ipsilateral superior rectus
 
        C) Movement of ipsilateral medial rectus
 
        D) Movement of ipsilateral levator palpebrae superioris
 
        E) Movement of ipsilateral lateral rectus
 

 

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This question was created on July 27, 1973 by fish.
This question was last modified on July 27, 1973.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) Movement of ipsilateral inferior rectus

This answer is incorrect.

CN III is in charge of movement of extrinsic eye muscles except lateral rectus & superior oblique  (See References)

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B) Movement of ipsilateral superior rectus

This answer is incorrect.

CN III is in charge of movement of extrinsic eye muscles except lateral rectus & superior oblique  (See References)

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C) Movement of ipsilateral medial rectus

This answer is incorrect.

CN III is in charge of movement of extrinsic eye muscles except lateral rectus & superior oblique  (See References)

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D) Movement of ipsilateral levator palpebrae superioris

This answer is incorrect.

CN III does innervate this muscle to keep eyelids open  (See References)

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E) Movement of ipsilateral lateral rectus

This answer is correct.

Movement of the lateral rectus is controlled by CN VI (abducens nerve)  (See References)

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References:

1. Vanderah, T. W., & Nolte, J. (2019). Chapter 21: Eye Movements. In Nolte's essentials of the human brain. essay, Elsevier.

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anatomy
Fish MCQ 16
Question ID: 112622124
Question written by fish. (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 07/27/1973
Modified: 07/27/1973
Estimated Permutations: 120