nerves innervating the muscles of the upper extremity

Topic: Anatomy

Created on Sunday, September 3 2006 by

Last modified on Sunday, September 3 2006.

 
        A) Extensor pollicis longus receives innervation from axillary nerve.
 
        B) The hypothenar muscles receives innervation from spinal segment C3.
 
        C) Supraspinatus receives innervation from radial nerve.
 
        D) Flexor digitorum superficialis receives innervation from median nerve.
 
        E) The palmar interossei receives innervation from medial cutaneous nerve of the forearm.
 

 

	= Go back to the top of the page.
	= Reload a different version of this question ().
	= Load a random question from the database.
	= Use this question as a template to create a totally NEW question.
	= Enter detailed rating for this question!
	= 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) extensor pollicis longus receives innervation from axillary nerve.

This answer is incorrect.

The statement, "extensor pollicis longus receives innervation from axillary nerve." is false.
extensor pollicis longus 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)

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

B) the hypothenar muscles receives innervation from spinal segment C3.

This answer is incorrect.

The statement, "the hypothenar muscles receives innervation from spinal segment C3." is false.
the hypothenar muscles receives innervation from ulnar nerve, receives innervation from spinal segment C8, and receives innervation from spinal segment T1.  (See References)

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

C) supraspinatus receives innervation from radial nerve.

This answer is incorrect.

The statement, "supraspinatus receives innervation from radial nerve." is false.
supraspinatus receives innervation from the brachial plexus, receives innervation from spinal segment C5, and receives innervation from spinal segment C6.  (See References)

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

D) flexor digitorum superficialis receives innervation from median nerve.

This answer is correct.

The statement, "flexor digitorum superficialis receives innervation from median nerve." is true.
flexor digitorum superficialis receives innervation from median nerve, receives innervation from spinal segment C7, receives innervation from spinal segment C8, and receives innervation from spinal segment T1.  (See References)

Please log in if you want to rate questions.

 

 

 

 

 

 

 

 

 

---

E) the palmar interossei receives innervation from medial cutaneous nerve of the forearm.

This answer is incorrect.

The statement, "the palmar interossei receives innervation from medial cutaneous nerve of the forearm." is false.
the palmar interossei receives innervation from ulnar nerve, receives innervation from spinal segment C8, and receives innervation from spinal segment T1.  (See References)

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.

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