Lower extremity muscle function and innervation 1

Topic: Pharmacology

Created on Monday, September 18 2006 by

Last modified on Monday, September 18 2006.

 
        A) L2 and L3
 
        B) S1
 
        C) L4
 
        D) L5 and S1
 
        E) L3 and L4
 

 

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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

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A) L2 and L3

This answer is incorrect.

L2 and L3 are the spinal segments which most strongly affect hip adduction.  (See References)

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B) S1

This answer is incorrect.

S1 is the spinal segment which most strongly affects knee flexion.  (See References)

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C) L4

This answer is incorrect.

L4 is the spinal segment which most strongly affects ankle dorsiflexion.  (See References)

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D) L5 and S1

This answer is incorrect.

L5 and S1 are the spinal segments which most strongly affect extension of the great toe.  (See References)

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E) L3 and L4

This answer is correct.

Knee extension is most strongly affected by the L3 and L4 spinal segments.  (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 1
Question ID: 69181
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 09/18/2006
Modified: 09/18/2006
Estimated Permutations: 0