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.

 
        A) Obturator externus
 
        B) Biceps femoris
 
        C) Adductor hallucis
 
        D) Vastus intermedius
 
        E) Flexor hallucis 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

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A) Obturator externus

This answer is incorrect.

Obturator externus typically receives innervation from spinal segments L3 and L4  (See References)

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B) Biceps femoris

This answer is incorrect.

Biceps femoris typically receives innervation from spinal segments L5, S1, and S2  (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) Vastus intermedius

This answer is correct.

The muscles of the lower extremity which typically receive innervation from spinal segment l2 include iliacus, psoas major, quadratus lumborum, sartorius, rectus femoris, vastus lateralis, vastus medialis, vastus intermedius, pectineus, adductor longus, adductor brevis, adductor magnus, and gracilis  (See References)

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E) Flexor hallucis longus

This answer is incorrect.

Flexor hallucis 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)

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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