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Intramuscular innervation patterns of the brachialis muscle

Authors
 Sung-Yoon Won  ;  Young-Hoon Cho  ;  You-Jin Choi  ;  Vittorio Favero  ;  Hee-Soon Woo  ;  Ki-Yeon Chang  ;  Kyung-Seok Hu  ;  Hee-Jin Kim 
Citation
 Clinical Anatomy, Vol.28(1) : 123-127, 2015 
Journal Title
 Clinical Anatomy 
ISSN
 0897-3806 
Issue Date
2015
Abstract
The aim of this study was to provide accurate anatomical descriptions of the patterns of innervation of the brachialis muscle by the musculocutaneous, radial, and median nerves. Sihler's staining method was applied to 20 brachialis muscles from 10 cadavers to reveal the intramuscular distribution patterns of the musculocutaneous, radial, and median nerves. Three patterns of innervation of the brachialis muscle by the three studied nerves were found: single, double, and triple. These innervation patterns were categorized into four types: Type I--only the musculocutaneous nerve; Type II--double innervation by the musculocutaneous and radial nerves; Type III--double innervation by the musculocutaneous and median nerves; and Type IV--triple innervation by all three nerves. Single, double, and triple innervation patterns occurred 25%, 70% (Type II, 55%; Type III, 15%), and 5% of the samples, respectively. The brachialis muscle is not solely innervated by the musculocutaneous nerve but also by the radial and median nerves, thus making it a potentially triply innervated muscle. Double innervation of this muscle with either the musculocutaneous and median nerve or the musculocutaneous and radial nerves was also observed.
Full Text
http://onlinelibrary.wiley.com/doi/10.1002/ca.22387/abstract
DOI
10.1002/ca.22387
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hee Jin(김희진) ORCID logo https://orcid.org/0000-0002-1139-6261
Choi, You Jin(최유진) ORCID logo https://orcid.org/0000-0003-3701-2200
Hu, Kyung Seok(허경석) ORCID logo https://orcid.org/0000-0002-9048-3805
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/139222
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