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Updated: Aug 17, 2026

Facial Nerve Axotomy in Mice: A Model to Study Motoneuron Response to Injury
Published on: February 23, 2015
Cutaneous sensory branch of the mylohyoid nerve
Kun Hwang1, Jin Yi Han, In Hyuk Chung
1Department of Plastic Surgery, College of Medicine, Inha University, Incheon, Korea. jokerhg@inha.ac.kr
Abstract:
The study is aimed at the anatomical detail of the cutaneous sensory branch of the mylohyoid nerve (MHN), which is distributed to the chin, as it relates to submental surgery. Dissection was done on the both sides (16) of eight cadavers fixed in formaldehyde solution. A distance from gonion of the branch innervating the anterior digastric and mylohyoid muscle and the cutaneous sensory branch was measured. The cutaneous sensory nerve was 27.0+/-8.6 mm long and numbered 2.3 (14.4%) of 16 specimens. The area distributed by most branches (78%) was a rhombus, having all four sides equal (15 mm), extending to the mental prominence and submentum. The divergent angle of the two facing sides of the bilateral rhombi was 60 degrees. Informed surgical manipulation of the mental area may avoid unnecessary damage to the sensory nerve.
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