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Zygomaticomandibularis Muscle

Authors
 Kun Hwang  ;  Dae Kwang Lee  ;  Hyung Jin Kim  ;  Yong Ho Shin  ;  In Hyuk Chung 
Citation
 JOURNAL OF CRANIOFACIAL SURGERY, Vol.16(4) : 655-657, 2005 
Journal Title
 JOURNAL OF CRANIOFACIAL SURGERY 
ISSN
 1049-2275 
Issue Date
2005
MeSH
Cadaver ; Fascia/anatomy & histology ; Humans ; Magnetic Resonance Imaging ; Masticatory Muscles/anatomy & histology*
Keywords
Facial muscles ; dissection ; magnetic resonance imaging
Abstract
The aim of this study was to elucidate the precise anatomy of the zygomaticomandibularis muscle through cadaveric dissection and magnetic resonance imaging (MRI). Five fresh human cadavers and 10 fixed cadavers were dissected. Nine preserved human cadavers were used for the MRI study. Four volunteers took MRIs of their head as well. Zygomaticomandibularis muscle was found in all the cadaveric specimens. It is a fan shaped muscle. The length of the muscle is 25.1 +/- 4.6 mm, and the width at the zygomatic arch is 16.6 +/- 4.2 mm. The thickness is approximately 4.8 +/- 1.9 mm. It originates from the deep layer of the deep temporal fascia approximately 1 cm above the zygomatic arch and is inserted into the superior border and outer surface of the mandible between the coronoid process and mandibular notch. The deepest layer of the masseter muscle covers the lateral surface of zygomaticomandibularis. We believe that this muscle functions as coordinator of the temporalis and masseter in mammals with strong masticatory power but is a degraded or rudimentary muscle in humans.
Full Text
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&AN=00001665-200507000-00020&LSLINK=80&D=ovft
DOI
OAK-2005-06071
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anatomy (해부학교실) > 1. Journal Papers
Yonsei Authors
Chung, In Hyuk(정인혁)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/151436
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