Histomorphometric Characteristics of the Facial Nerve

곽현호; 구병찬; 허경석; 김규천; 박봉수; 김희진

doi:10.11637/aba.2008.21.4.343

Histomorphometric Characteristics of the Facial Nerve

Anatomy & Biological Anthropology
Abbr : Anat Biol Anthropol
2008, 21(4), pp.343~349
DOI : 10.11637/aba.2008.21.4.343
Publisher : 대한체질인류학회
Research Area : Medicine and Pharmacy > Anatomy

곽현호 ¹, 구병찬 ¹, 허경석 ², 김규천 ¹, 박봉수 ¹, 김희진 ¹

¹부산대학교
²연세대학교 치과대학 구강생물학교실 해부 및 발생생물학 연구실, 개인식별연구소, 두뇌한국21 연세치의과학사업단

Accredited

ABSTRACT

With the development of microsurgery, autogenous nerve grafting is being used widely in the treatment of the injured facial nerve. To use a donor graft for repair of the facial nerve, fascicular area and fascicular number should be considered in the selection of the donor site. This study demonstrated a detailed morphologic description of the facial nerve, including a microscopic assessment of nerve size and shape, and fascicular number and diameters. 40 embalmed hemi-sectioned head specimens from Korean adult cadavers were dissected to identify the facial nerve branches and nerve samples for histologic examination were cut from the anterior margin of the parotid gland. At the border of the parotid gland, the facial nerve specimens were found to have an average of 11 branches (ranging from 8 to 16). The branches were distributed among the five distinct branches, the buccal branch had the greatest number of branches (3.47), and the zygomatic branch had the largest diameters (0.93 mm). The number of fascicles varied from one to 9 over the course of the nerve, the trunk had the greatest number of fascicles (4.36), and averages indicated a tendency for fascicular numbers to decrease distally, from trunk (4.36) to upper division (3.72) to lower division (3.60) to marginal mandibular branch (2.37). The total fascicular area was averaging 2.72 mm2, 1.88 mm2, and 1.04 mm2 at trunk, upper division, and lower division, respectively. However no significant differences of the fascicular diameter could be shown between five branches. This results of detailed facial nerve microanatomy should help in the treatment of the injured facial nerve.

KEYWORDS

Facial nerve, Surgical anatomy, Morphometry, Korean

Citation status

* References for papers published after 2023 are currently being built.

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Anatomy & Biological Anthropology 2023 KCI Impact Factor : 0.33

Histomorphometric Characteristics of the Facial Nerve

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* References for papers published after 2023 are currently being built.

Anatomy & Biological Anthropology 2023 KCI Impact Factor : 0.33

Histomorphometric Characteristics of the Facial Nerve

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* References for papers published after 2023 are currently being built.