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) Abductor hallucis
 
        B) Superior gemellus
 
        C) Gracilis
 
        D) Tibialis posterior
 
        E) Adductor magnus
 

 

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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) Abductor hallucis

This answer is incorrect.

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

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B) Superior gemellus

This answer is correct.

The muscles of the lower extremity which typically receive innervation from spinal segment s1 include obturator internus, piriformis, gluteus maximus, gluteus medius, gluteus minimus, superior gemellus, inferior gemellus, quadratus femoris, semitendinosus, semimembranosus, biceps femoris, extensor hallucis longus, extensor digitorum longus, peroneus tertius, peroneus longus, peroneus brevis, gastrocnemius, soleus, plantaris, popliteus, and flexor hallucis brevis  (See References)

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C) Gracilis

This answer is incorrect.

Gracilis typically receives innervation from spinal segments L2 and L3  (See References)

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D) Tibialis posterior

This answer is incorrect.

Tibialis posterior typically receives innervation from spinal segments L4 and L5  (See References)

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E) Adductor magnus

This answer is incorrect.

Adductor magnus typically receives innervation from spinal segments L2, L3, and L4  (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