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Origin of the radial nerve branch innervating the brachialis muscle

Authors
 CHANG-SEOK OH  ;  HYUNG-SUN WON  ;  KYU-SEOK LEE  ;  IN-HYUK CHUNG 
Citation
 CLINICAL ANATOMY, Vol.22(4) : 495-499, 2009 
Journal Title
 CLINICAL ANATOMY 
ISSN
 0897-3806 
Issue Date
2009
MeSH
Aged ; Aged, 80 and over ; Arm/anatomy & histology ; Arm/innervation ; Brachial Plexus/anatomy & histology ; Female ; Humans ; Male ; Middle Aged ; Muscle, Skeletal/anatomy & histology* ; Muscle, Skeletal/innervation* ; Radial Nerve/anatomy & histology*
Keywords
brachialis ; radial nerve ; brachial plexus
Abstract
The brachialis muscle is dually innervated by the musculocutaneous nerve running via the anterior division of the brachial plexus and the radial nerve running via the posterior division of the plexus. There have been inconsistent descriptions of the pathway of the radial nerve branch at the brachial plexus. This study investigated the route of the radial nerve branch innervating the brachialis muscle at the brachial plexus. In 20 samples, the radial nerve branch innervating the brachialis muscle was separated and traced up to the cervical nerve under a surgical microscope. All the radial nerve branches innervating the muscle ran via the posterior cord, the posterior division, and the superior or middle trunk at the brachial plexus. The radial nerve branches arose from C5 in 5 cases, C6 in 11 cases, C5 and C6 in 3 cases, and C6 and C7 in 1 case.
Full Text
http://onlinelibrary.wiley.com/doi/10.1002/ca.20788/abstract
DOI
10.1002/ca.20788
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anatomy (해부학교실) > 1. Journal Papers
Yonsei Authors
Won, Hyung Sun(원형선)
Lee, Kyu Seok(이규석)
Chung, In Hyuk(정인혁)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/104479
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