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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 L3 spinal segment?

 
        A) Lumbricals
 
        B) Adductor brevis
 
        C) Adductor hallucis
 
        D) Abductor digiti minimi
 
        E) Flexor digitorum longus
 

 


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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) Lumbricals

This answer is incorrect.


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

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B) Adductor brevis

This answer is correct.


The muscles of the lower extremity which typically receive innervation from spinal segment l3 include iliacus, psoas major, quadratus lumborum, sartorius, rectus femoris, vastus lateralis, vastus medialis, vastus intermedius, pectineus, adductor longus, adductor brevis, adductor magnus, gracilis, and obturator externus  (See References)

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C) Adductor hallucis

This answer is incorrect.


Adductor hallucis typically receives innervation from spinal segments S2 and S3  (See References)

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D) Abductor digiti minimi

This answer is incorrect.


Abductor digiti minimi typically receives innervation from spinal segments S2 and S3  (See References)

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E) Flexor digitorum longus

This answer is incorrect.


Flexor digitorum longus typically receives innervation from spinal segments S2 and S3  (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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