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Spinal segments innervating muscles of the lower extremity 2

Topic: Anatomy

Created on Wednesday, August 30 2006 by jdmiles

Last modified on Tuesday, November 4 2008.

Regarding the muscles of the lower extremity, which of the following muscles typically receives innervation from the L1 spinal segment?

 
        A) Dorsal interossei
 
        B) Vastus intermedius
 
        C) Vastus lateralis
 
        D) Rectus femoris
 
        E) Psoas major
 

 


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This question was created on August 30, 2006 by jdmiles.
This question was last modified on November 04, 2008.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) Dorsal interossei

This answer is incorrect.


Dorsal interossei typically receives innervation from spinal segments S2 and S3  (See References)

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B) Vastus intermedius

This answer is incorrect.


Vastus intermedius typically receives innervation from spinal segments L2, L3, and L4  (See References)

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C) Vastus lateralis

This answer is incorrect.


Vastus lateralis typically receives innervation from spinal segments L2, L3, and L4  (See References)

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D) Rectus femoris

This answer is incorrect.


Rectus femoris typically receives innervation from spinal segments L2, L3, and L4  (See References)

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E) Psoas major

This answer is correct.


The muscles of the lower extremity which typically receive innervation from spinal segment l1 include psoas major and quadratus lumborum  (See References)

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References:

1. Moore, K.L. (1992). Clinical Oriented Anatomy, 3rd Edition. Williams & Wilkins, Baltimore. (ISBN:068306133X)Advertising:
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anatomy
Spinal segments innervating muscles of the lower extremity 2
Question ID: 830200603
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 08/30/2006
Modified: 11/04/2008
Estimated Permutations: 0

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