Anatomical description of the extratemporal facial nerve under high-definition system: a microsurgical study in rats
ABSTRACT Purpose: To describe the microsurgical anatomical aspects of the extratemporal facial nerve of Wistar rats under a high-definition video system. Methods: Ten male Wistar rats (12–15 weeks old), without veterinary diseases, weighing 220–280 g, were used in this study. All animals in this s...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia
2022-10-01
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| Series: | Acta Cirúrgica Brasileira |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502022000800201&tlng=en |
| _version_ | 1811325522739724288 |
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| author | Marcela Maria Rabelo Pinto Deivid Ramos dos Santos Lívia Guerreiro de Barros Bentes Rafael Silva Lemos Nyara Rodrigues Conde de Almeida Manuela Rodrigues Neiva Fernandes Joyce Pantoja Braga Danusa Neves Somensi Rui Sergio Monteiro de Barros |
| author_facet | Marcela Maria Rabelo Pinto Deivid Ramos dos Santos Lívia Guerreiro de Barros Bentes Rafael Silva Lemos Nyara Rodrigues Conde de Almeida Manuela Rodrigues Neiva Fernandes Joyce Pantoja Braga Danusa Neves Somensi Rui Sergio Monteiro de Barros |
| author_sort | Marcela Maria Rabelo Pinto |
| collection | DOAJ |
| description | ABSTRACT Purpose: To describe the microsurgical anatomical aspects of the extratemporal facial nerve of Wistar rats under a high-definition video system. Methods: Ten male Wistar rats (12–15 weeks old), without veterinary diseases, weighing 220–280 g, were used in this study. All animals in this study were submitted to the same protocol and by the same surgeon. A 10-mm incision was made below the bony prominence of the right or left ear, and extended towards the angle of the mandible. The dissection was performed and the main branches of the facial nerve were dissected. Results: The main trunk of the facial nerve has a length of 0.88 ± 0.10 mm and a length of 3.81 ± 1.03 mm, measured from its emergence from the stylomastoid foramen to its bifurcation. Seven branches originating from the facial nerve were identified: posterior auricular, posterior cervical, cervical, mandibular, buccal, temporal, and zygomatic. Conclusions: The anatomy of the facial nerve is comparable to that of humans, with some variations. The most observed anatomical division was the distribution in posterior auricular, posterior cervical, cervical, mandibular, buccal, temporal, and zygomatic branches. There is no statistical difference between the thickness and distance of the structures compared to the contralateral side. |
| first_indexed | 2024-04-13T14:35:47Z |
| format | Article |
| id | doaj.art-3829e32258914fdfa3c1392146f5758d |
| institution | Directory Open Access Journal |
| issn | 1678-2674 |
| language | English |
| last_indexed | 2024-04-13T14:35:47Z |
| publishDate | 2022-10-01 |
| publisher | Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia |
| record_format | Article |
| series | Acta Cirúrgica Brasileira |
| spelling | doaj.art-3829e32258914fdfa3c1392146f5758d2022-12-22T02:43:03ZengSociedade Brasileira para o Desenvolvimento da Pesquisa em CirurgiaActa Cirúrgica Brasileira1678-26742022-10-0137810.1590/acb370803Anatomical description of the extratemporal facial nerve under high-definition system: a microsurgical study in ratsMarcela Maria Rabelo Pintohttps://orcid.org/0000-0002-6446-3122Deivid Ramos dos Santoshttps://orcid.org/0000-0002-7558-0359Lívia Guerreiro de Barros Benteshttps://orcid.org/0000-0002-4788-1672Rafael Silva Lemoshttps://orcid.org/0000-0002-6806-6220Nyara Rodrigues Conde de Almeidahttps://orcid.org/0000-0003-0651-2296Manuela Rodrigues Neiva Fernandeshttps://orcid.org/0000-0002-8032-6371Joyce Pantoja Bragahttps://orcid.org/0000-0003-3191-0077Danusa Neves Somensihttps://orcid.org/0000-0001-9513-5589Rui Sergio Monteiro de Barroshttps://orcid.org/0000-0002-4841-2894ABSTRACT Purpose: To describe the microsurgical anatomical aspects of the extratemporal facial nerve of Wistar rats under a high-definition video system. Methods: Ten male Wistar rats (12–15 weeks old), without veterinary diseases, weighing 220–280 g, were used in this study. All animals in this study were submitted to the same protocol and by the same surgeon. A 10-mm incision was made below the bony prominence of the right or left ear, and extended towards the angle of the mandible. The dissection was performed and the main branches of the facial nerve were dissected. Results: The main trunk of the facial nerve has a length of 0.88 ± 0.10 mm and a length of 3.81 ± 1.03 mm, measured from its emergence from the stylomastoid foramen to its bifurcation. Seven branches originating from the facial nerve were identified: posterior auricular, posterior cervical, cervical, mandibular, buccal, temporal, and zygomatic. Conclusions: The anatomy of the facial nerve is comparable to that of humans, with some variations. The most observed anatomical division was the distribution in posterior auricular, posterior cervical, cervical, mandibular, buccal, temporal, and zygomatic branches. There is no statistical difference between the thickness and distance of the structures compared to the contralateral side.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502022000800201&tlng=enFacial NerveFacial ParalysisMicrosurgeryMicrodissectionAnatomyRats |
| spellingShingle | Marcela Maria Rabelo Pinto Deivid Ramos dos Santos Lívia Guerreiro de Barros Bentes Rafael Silva Lemos Nyara Rodrigues Conde de Almeida Manuela Rodrigues Neiva Fernandes Joyce Pantoja Braga Danusa Neves Somensi Rui Sergio Monteiro de Barros Anatomical description of the extratemporal facial nerve under high-definition system: a microsurgical study in rats Acta Cirúrgica Brasileira Facial Nerve Facial Paralysis Microsurgery Microdissection Anatomy Rats |
| title | Anatomical description of the extratemporal facial nerve under high-definition system: a microsurgical study in rats |
| title_full | Anatomical description of the extratemporal facial nerve under high-definition system: a microsurgical study in rats |
| title_fullStr | Anatomical description of the extratemporal facial nerve under high-definition system: a microsurgical study in rats |
| title_full_unstemmed | Anatomical description of the extratemporal facial nerve under high-definition system: a microsurgical study in rats |
| title_short | Anatomical description of the extratemporal facial nerve under high-definition system: a microsurgical study in rats |
| title_sort | anatomical description of the extratemporal facial nerve under high definition system a microsurgical study in rats |
| topic | Facial Nerve Facial Paralysis Microsurgery Microdissection Anatomy Rats |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502022000800201&tlng=en |
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