FrontalCortex, Inc. is a non-profit corporation dedicated to neurology education.

nerves innervating the muscles of the upper extremity

Topic: Anatomy

Created on Sunday, September 3 2006 by

Last modified on Sunday, September 3 2006.

Which of the following is most accurate regarding nerves innervating the muscles of the upper extremity?

 
        A) Lumbricals III receives innervation from spinal segment T1.
 
        B) Trapezius receives innervation from musculocutaneous nerve.
 
        C) Extensor pollicis brevis receives innervation from spinal segment C4.
 
        D) Rhomboids receives innervation from ulnar nerve.
 
        E) Pronator teres receives innervation from spinal segment C3.
 

 


Back to the question = Go back to the top of the page.
See another question like this one = Reload a different version of this question ().
Click here for a random question = Load a random question from the database.
Clone this question = Use this question as a template to create a totally NEW question.
Rate this question = Enter detailed rating for this question!
Average user rating for this question = 5 = How users like you have rated this question.
This question was created on September 03, 2006 by .
This question was last modified on September 03, 2006.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) lumbricals III receives innervation from spinal segment T1.

This answer is correct.


The statement, "lumbricals III receives innervation from spinal segment T1." is true.
lumbricals III receives innervation from ulnar nerve, receives innervation from spinal segment C8, and receives innervation from spinal segment T1.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 5
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




B) trapezius receives innervation from musculocutaneous nerve.

This answer is incorrect.


The statement, "trapezius receives innervation from musculocutaneous nerve." is false.
trapezius receives innervation from spinal accessory nerve, receives innervation from spinal segment C3, and receives innervation from spinal segment C4.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 5
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




C) extensor pollicis brevis receives innervation from spinal segment C4.

This answer is incorrect.


The statement, "extensor pollicis brevis receives innervation from spinal segment C4." is false.
extensor pollicis brevis receives innervation from radial nerve, receives innervation from posterior interosseous nerve, receives innervation from spinal segment C7, and receives innervation from spinal segment C8.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 5
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




D) rhomboids receives innervation from ulnar nerve.

This answer is incorrect.


The statement, "rhomboids receives innervation from ulnar nerve." is false.
rhomboids receives innervation from the brachial plexus, receives innervation from spinal segment C4, and receives innervation from spinal segment C5.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 5
Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 




E) pronator teres receives innervation from spinal segment C3.

This answer is incorrect.


The statement, "pronator teres receives innervation from spinal segment C3." is false.
pronator teres receives innervation from median nerve, receives innervation from spinal segment C6, and receives innervation from spinal segment C7.  (See References)

Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 5
Please log in if you want to rate questions.

 

 

 

 

References:

1. Guarantors of Brain. (2000). Aids to the Examination of the Peripheral Nervous System, fourth edition. W.B. Saunders, Edinburgh.
2. Moore, K.L. (1992). Clinical Oriented Anatomy, 3rd Edition. Williams & Wilkins, Baltimore.
Back to the questionSee another question like this oneClick here for a random questionClone this question Rate this questionAverage user rating for this question = 5
Please log in if you want to rate questions.

 

FrontalCortex.com -- Neurology Review Questions -- Neurology Boards -- Board Review -- Residency Inservice Training Exam -- RITE Exam Review
anatomy
nerves innervating the muscles of the upper extremity
Question ID: 683156834
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved. Created: 09/03/2006
Modified: 09/03/2006
Estimated Permutations: 0

User Comments About This Question:

0 user entries
Please log in if you'd like to add a comment.