Sensory innervation of the upper extremity
Topic: Anatomy
Created on Friday, December 22 2006 by jdmiles
Last modified on Sunday, November 16 2008.
A 532 year-old Vitruvian male presents to your office, complaining of numbness.
You expertly diagnose him as having a mononeuropathy affecting the median nerve.
Which image most accurately illustates the pattern of sensory innervation provided by the median nerve?
A) ' B) ' C) ' D) ' E) '
This question was created on December 22, 2006 by jdmiles.
This question was last modified on November 16, 2008.
ANSWERS AND EXPLANATIONS
A) '
This answer is incorrect.
The distribution of sensory innervation illustrated in this image best corresponds to the superficial branch of radial nerve. (
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B) '
This answer is correct.
The following image illustrates the distribution of sensory innervation of some of the named nerves in the upper extremity.
(See References)
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C) '
This answer is incorrect.
The distribution of sensory innervation illustrated in this image best corresponds to the intercostobrachial nerve. (
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D) '
This answer is incorrect.
The distribution of sensory innervation illustrated in this image best corresponds to the axillary nerve. (
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E) '
This answer is incorrect.
The distribution of sensory innervation illustrated in this image best corresponds to the medial brachial cutaneous nerve. (
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References:
1. Gray, Henry. (1918). Anatomy of the human body 20th ed. Philadelphia: Lea & Febiger. (ASIN:B000TW11G6) | Advertising:
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anatomy
Sensory innervation of the upper extremity
Question ID: 810200601
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 12/22/2006
Modified: 11/16/2008
Estimated Permutations: 0