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Sihler staining study of anastomosis between the facial and trigeminal nerves in the ocular area and its clinical implications

Authors
 Hun-Mu Yang  ;  Sung-Yoon Won  ;  Hee-Jin Kim  ;  Kyung-Seok Hu 
Citation
 MUSCLE & NERVE, Vol.48(4) : 545-550, 2013 
Journal Title
 MUSCLE & NERVE 
ISSN
 0148-639X 
Issue Date
2013
MeSH
Aged ; Face/innervation* ; Face/pathology ; Face/physiopathology* ; Facial Expression ; Facial Nerve/anatomy & histology ; Facial Nerve/pathology* ; Facial Nerve/physiopathology* ; Female ; Humans ; Male ; Staining and Labeling/methods ; Trigeminal Nerve/anatomy & histology* ; Trigeminal Nerve/pathology ; Trigeminal Nerve/physiopathology* ; Trochlear Nerve/anatomy & histology ; Trochlear Nerve/pathology ; Trochlear Nerve/physiopathology
Keywords
Sihler staining ; facial expression muscle ; facial nerve ; nerve communication ; trigeminal nerve
Abstract
INTRODUCTION: The trigeminal nerve (CN V) supplies mostly sensory innervation to the face, and the facial nerve (CN VII) conveys primarily motor fibers. The aim of this study was to elucidate their distributions and anastomoses. METHODS: Fourteen specimens of hemisectioned faces were gathered from human cadavers and stained with Sihler staining. RESULTS: The temporal (Tbr), zygomatic (Zbr), and buccal (Bbr) branches of CN VII formed trigeminofacial anastomoses in the ocular area. Communications were observed between the supraorbital nerve and the Tbr (85.7%), the infraorbital nerve and the Bbr (100%) and Zbr (28.6%), and the zygomaticofacial nerve and the Zbr (41.7%). Anastomoses were formed between the supratrochlear nerve and the Tbr (57.1%) and Bbr (50%), and the infratrochlear nerve and the Bbr (85.7%). CONCLUSIONS: Motor and sensory axons to the face contribute to trigeminofacial anastomoses, which may play key roles in subtle movements of muscles of facial expression.
Full Text
http://onlinelibrary.wiley.com/doi/10.1002/mus.23875/abstract
DOI
10.1002/mus.23875
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
Yang, Hun Mu(양헌무) ORCID logo https://orcid.org/0000-0003-1954-0114
Hu, Kyung Seok(허경석) ORCID logo https://orcid.org/0000-0002-9048-3805
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/87689
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