Spinal segments innervating muscles of the lower extremity 1

Topic: Anatomy

Created on Wednesday, August 30 2006 by

Last modified on Wednesday, December 31 1969.

 
        A) L2
 
        B) L4
 
        C) L1
 
        D) S2
 
        E) T10
 

 

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This question was created on August 30, 2006 by .
This question was last modified on December 31, 1969.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS

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A) L2

This answer is incorrect.

L2 does not usually innervate the piriformis muscle in the lower extremity.  (See References)

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B) L4

This answer is incorrect.

L4 does not usually innervate the piriformis muscle in the lower extremity.  (See References)

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C) L1

This answer is incorrect.

L1 does not usually innervate the piriformis muscle in the lower extremity.  (See References)

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D) S2

This answer is correct.

Piriformis typically receives innervation from spinal segments S1 and S2  (See References)

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E) T10

This answer is incorrect.

T10 does not usually innervate the piriformis muscle in the lower extremity.  (See References)

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References:

1. Moore, K.L. (1992). Clinical Oriented Anatomy, 3rd Edition. Williams & Wilkins, Baltimore.

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anatomy
Spinal segments innervating muscles of the lower extremity 1
Question ID: 830200602
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 08/30/2006
Modified: 12/31/1969
Estimated Permutations: 0