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Updated: Jun 9, 2026

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Facial Nerve Axotomy in Mice: A Model to Study Motoneuron Response to Injury
Published on: February 23, 2015
[Angular nerve of facial nerve: anatomic research]
Ning-Ze Yang1, Bin Wang, Zhi-Jun Wang
1Dalian Medical University Anatomy Teaching, Dalian 116044, China. lnyangnz@126.com
Summary
This study details the anatomy of the angular nerve (AN) and its variations. Findings provide a precise surgical approach for denervation procedures targeting specific facial muscles.
Area of Science:
- Anatomy
- Surgical Anatomy
- Facial Nerves
Context:
- Understanding the precise anatomical course of the angular nerve (AN) is crucial for safe and effective facial surgery.
- Variations in AN formation can impact surgical outcomes and complication risks.
Purpose:
- To elucidate the detailed anatomy of the angular nerve (AN).
- To establish a safe surgical corridor for denervation of the corrugator supercilii, depressor supercilii, and procerus muscles.
Summary:
- Cadaveric dissection revealed three types of AN formation (Type I, II, III) based on branching patterns.
- The AN's trajectory relative to the medial canthus support ligament was mapped.
- Specific entry points into target muscles (depressor supercilii, procerus, levator labii superioris alaeque nasi) were identified.
Impact:
- Provides critical anatomical data for optimizing surgical techniques in facial plastic surgery.
- Aims to reduce iatrogenic injury during procedures involving the AN and associated muscles.
- Contributes to improved patient safety and aesthetic results in facial rejuvenation surgeries.
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