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Lower extremity muscle function and innervation 4

Topic: Pharmacology

Created on Monday, September 18 2006 by

Last modified on Monday, September 18 2006.




A patient presents with weakness of ankle plantarflexion. A lesion of which peripheral nerve could cause this deficit?

 
        A) Tibial
 
        B) Femoral
 
        C) Sciatic
 
        D) Obturator
 
        E) Deep peroneal
 

 


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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) tibial

This answer is correct.


Ankle plantarflexion is primarily mediated by the tibial nerve.  (See References)

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B) femoral

This answer is incorrect.


The tibial nerve is involved in generating ankle plantarflexion.  (See References)

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C) sciatic

This answer is incorrect.


The tibial nerve is involved in generating ankle plantarflexion.  (See References)

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D) obturator

This answer is incorrect.


The tibial nerve is involved in generating ankle plantarflexion.  (See References)

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E) deep peroneal

This answer is incorrect.


The tibial nerve is involved in generating ankle plantarflexion.  (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 4
Question ID: 69184
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 09/18/2006
Modified: 09/18/2006
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