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目的：为下颌神经手术提供形态学基础。方法：解剖观测２１例（男１３，女８）４２侧成人标本。结果：下颌神经（颅外段）主干长（出卵圆孔至分支处的距离）为１．３±０．４ｃｍ；宽度４．９±１．３ｍｍ，厚度１．９±０．６ｍｍ。还测量了下颌神经各分支起始处的长、宽和厚度。结论：本文结果为切断下颌神经后股和颊神经下（长）支的手术提供了形态学资料。
Objective: To provide morphological basis for mandibular nerve surgery. METHODS: Twenty-one adult male and female adult specimens of 42 cases (male 13, female 8) were dissected and observed. Results: The length of the mandibular nerve (extracranial segment) was 1.3 ± 0.4 cm, the width was 4.9 ± 1.3 mm and the thickness was 1.9 ± 0.6 mm. The length, width and thickness at the beginning of each branch of the mandibular nerve were also measured. CONCLUSION: The results of this study provide morphological data for the surgery of the lower (long) branch of the mandibular nerve and the buccal nerve.