계명대학교 의학도서관 Repository

Medial Accessory Belly of the Brachialis Muscle in the Korean Population: A Case Report

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Author(s)
Yu-Ran HeoJae-ho LeeHan-Gyu JeongKwang Rak Park
Keimyung Author(s)
Lee, Jae Ho
Department
Dept. of Anatomy (해부학)
Journal Title
Anat Biol Anthropol
Issued Date
2023
Volume
36
Issue
2
Keyword
Brachialis muscleAccessory headAnatomical variation
Abstract
The brachialis muscle (BR) is a powerful flexor located in the anterior part of the brachial region. It is supplied with blood from the brachial artery and is innervated by the musculocutaneous nerve. BR variation is rare, but tends to divide the muscle into two or more, or to attach the accessory belly to other muscles around it. Here, we reported an accessory belly of BR (AcBr) in Korean cadaver. Under the bicep brachii muscle, AcBr was originated from the medial side of the BR. It continued 151.8 mm more and inserted between the tendon of the biceps brachii muscle and the biceps aponeurosis. The length from the origin of the BR to the origin of AcBr was 30.1 mm. It crossed superficially the brachial artery and median nerve. This rare variation of BR cannot rule out the possibility of neuropathy, and may help improve our understanding of neuralgia. Here, we introduced rare variation of BR and discussed its clinical and embryological significance.
Keimyung Author(s)(Kor)
이재호
Publisher
School of Medicine (의과대학)
Type
Article
ISSN
2671-566X
Source
https://e-aba.org/DOIx.php?id=10.11637/aba.2023.36.2.77
DOI
10.11637/aba.2023.36.2.77
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/45069
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Anatomy (해부학)
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