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) Gluteus minimus
 
        B) Tibialis anterior
 
        C) Gluteus medius
 
        D) Extensor digitorum longus
 
        E) Piriformis
 

 

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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) Gluteus minimus

This answer is incorrect.

Gluteus minimus typically receives innervation from spinal segments L5 and S1  (See References)

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B) Tibialis anterior

This answer is incorrect.

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

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C) Gluteus medius

This answer is incorrect.

Gluteus medius typically receives innervation from spinal segments L5 and S1  (See References)

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D) Extensor digitorum longus

This answer is incorrect.

Extensor digitorum longus typically receives innervation from spinal segments L5 and S1  (See References)

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E) Piriformis

This answer is correct.

The muscles of the lower extremity which typically receive innervation from spinal segment s2 include piriformis, gluteus maximus, semitendinosus, semimembranosus, biceps femoris, peroneus longus, peroneus brevis, gastrocnemius, soleus, plantaris, flexor hallucis longus, flexor digitorum longus, abductor hallucis, flexor digitorum brevis, abductor digiti minimi, quadratus plantae, lumbricals, flexor hallucis brevis, adductor hallucis, flexor digiti minimi brevis, plantar interossei, and dorsal interossei  (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