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Lower extremity muscle function and innervation 2

Topic: Pharmacology

Created on Monday, September 18 2006 by

Last modified on Monday, September 18 2006.




Which muscle or muscles would be most affected by a lesion of the L1 and L2 spinal roots?

 
        A) Adductors
 
        B) Ilipsoas
 
        C) Tibialis anterior
 
        D) Extensor hallucis longus
 
        E) Hamstrings
 

 


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This question was created on September 18, 2006 by .
This question was last modified on September 18, 2006.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) adductors

This answer is incorrect.


The L1 and L2 spinal segments are the segments which most strongly innervate the ilipsoas.  (See References)

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B) ilipsoas

This answer is correct.


The ilipsoas muscle is most strongly innervated by the L1 and L2 spinal segments.  (See References)

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C) tibialis anterior

This answer is incorrect.


The L1 and L2 spinal segments are the segments which most strongly innervate the ilipsoas.  (See References)

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D) extensor hallucis longus

This answer is incorrect.


The L1 and L2 spinal segments are the segments which most strongly innervate the ilipsoas.  (See References)

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E) hamstrings

This answer is incorrect.


The L1 and L2 spinal segments are the segments which most strongly innervate the ilipsoas.  (See References)

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References:

1. Guarantors of Brain. (2000). Aids to the Examination of the Peripheral Nervous System, fourth edition. W.B. Saunders, Edinburgh.
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pharmacology
Lower extremity muscle function and innervation 2
Question ID: 69182
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 09/18/2006
Modified: 09/18/2006
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