喉上神经和喉返神经的应用解剖

Applied anatomy of the superior and recurrent laryngeal nerves

目的研究喉上神经和喉返神经的走行和入喉点。方法在50具(100例)成人尸体标本上解剖观测喉的神经与甲状腺的血管及甲状软骨上角、下角的位置关系。结果①喉上神经入喉点在甲状软骨上角尖的前下方约13mm;②喉返神经入喉点在甲状软骨下角尖的后下方7mm;距喉结最突出点水平线下方约3. 5cm。结论术中以甲状软骨上角、下角和喉结为标志,是显露喉上神经和喉返神经容易、安全和实用的方法。

Objective To observe the travel and the entering point of the superior laryngeal nerves and the recurrent laryngeal nerveso Methods the relationship between the superior laryngeal nerves, the recurrent laryngeal nerves and the thyroid arteries havebeen observed on 50 adult cadaver specknens (100 sides), and also the relationship between superior and inferior horn of thyroid cartilage. Results ①The entering point of the superior laryngeal nerve was found at about 13 mm frontale-lower from the superior comer of thyroid cartilage. ②The entering point of the recurrent laryngeal nerve was found at about 7mm hehand-lower from the inferior comer of thyroid camde and the 3.5cm from the laryngeal prominence. Conclusion In operations, using superior and inferior comer of thyroid cartilage and laryngeal prominence as to expose laryngeal nerves is an easy, safe and practical way.thyroidcamdeandthe3. 5cmfro cartilageandlaryngealprominen