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) The palmar interossei receives innervation from posterior interosseous nerve. B) Opponens pollicis receives innervation from posterior interosseous nerve. C) Flexor digitorum superficialis receives innervation from spinal segment T1. D) Serratus anterior receives innervation from anterior interosseous nerve. E) Triceps receives innervation from spinal segment T2.
This question was created on September 03, 2006 by .
This question was last modified on September 03, 2006.
ANSWERS AND EXPLANATIONS
A) the palmar interossei receives innervation from posterior interosseous nerve.
This answer is incorrect.
The statement, "the palmar interossei receives innervation from posterior interosseous nerve." 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. |
B) opponens pollicis receives innervation from posterior interosseous nerve.
This answer is incorrect.
The statement, "opponens pollicis receives innervation from posterior interosseous nerve." is false.
opponens pollicis receives innervation from median 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) flexor digitorum superficialis receives innervation from spinal segment T1.
This answer is correct.
The statement, "flexor digitorum superficialis receives innervation from spinal segment T1." 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. |
D) serratus anterior receives innervation from anterior interosseous nerve.
This answer is incorrect.
The statement, "serratus anterior receives innervation from anterior interosseous nerve." is false.
serratus anterior receives innervation from the brachial plexus, receives innervation from spinal segment C5, receives innervation from spinal segment C6, and receives innervation from spinal segment C7. (
See References)
|
 |  |  |
|  |  |
| Please log in if you want to rate questions. |
E) triceps receives innervation from spinal segment T2.
This answer is incorrect.
The statement, "triceps receives innervation from spinal segment T2." is false.
triceps receives innervation from radial nerve, receives innervation from spinal segment C6, receives innervation from spinal segment C7, and receives innervation from spinal segment C8. (
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