輪状咽頭筋の臨床解剖学的研究

概要

論文の詳細を見る
The purposes of this study are to provide a standardized gross anatomical measure concerning the cricopharyngeus muscle and to provide a standardized diameter of the cricopharyngeus muscle fibers. For the former, excized specimens from 40 adults (20 males and 20 females) were used whereas specimens from 14 adults (10 males and 4 females) were investigated for the latter. The results were as follows: 1. The mean width of the posterolateral portion of the cricopharyngeus muscle was 11.5mm for male and 10.6mm for female. 2. The mean width of the cricopharyngeus muscle including both the oblique and the transverse portion was 26.8mm for male and 22.1mm for female, when measured on the posterior midline. The mean value for the transverse portion was 13.9mm for male and 11.7mm for female. 3. In all the specimens, the recurrent laryngeal nerve entered the larynx posteriorly to the inferior horn of the thyroid cartilage except in one side. The mean distance between the nerve and the extension of the corner was 1.35mm for male and 0.75mm for female. 4. The location where the recurrent nerve enters the larynx was observed anterior to the anterior edge of the esophagus. The mean distance between the esophagus and the nerve was 2.24mm for male and 1.98mm for female. 5. The mean diameter of the cricopharyngeus muscle fibers was 38.9 pm for male and 32.6μm for female.
耳鼻と臨床会の論文