鼻咽部的淋巴系

THE LYMPHATIC SYSTEM OF THE NASOPHARYNX

1.在70例胎儿及婴儿尸体上用器官内淋巴管注射的方法,观察了鼻咽部的淋巴管及其局部淋巴结。2.在鼻咽部粘膜层具有一层毛细淋巴管网,于咽鼓管扁桃体及咽扁桃体处最为密集。粘膜层毛细淋巴管注入粘膜下淋巴管,后者汇成数条输出管。3.从鼻咽部后壁走出的输出管注入咽后内、外侧淋巴结,或是经过颈内动、静脉的后方,注入乳突尖部深处的颈上深淋巴结。4.从鼻咽部侧壁走出的输出管,注入颈内动、静脉出入颅底处前方的淋巴结,或向下入颈静脉二腹肌淋巴结及在舌动脉起点至颈总动脉分岐处之间的颈上深淋巴结。5.咽后外侧淋巴结位于寰椎侧块高度,有1~2个;咽后内侧淋巴结紧贴咽腱膜,仅有1个。充色的颈静脉二腹肌淋巴结仅有一个,形体较大。

The lymphatic vessels and regional nodes of the nasopharynx in 70 foetuses and infant cadavers were studied with the method of injection of the lymphatics of the organ.There is a network of lymphatic capillaries in the mucous membrane of the nasopharynx,which drains into the submucous lymphatics.The latter join together to form a number of efferent ducts.The efferents emerging from the posterior wall of the nasopharynx end in the retropharyngeal lateral and medial nodes,or pass to the posterior aspect of the internal carotid artery and internal jugular vein and end in the upper deep cervical nodes lying deep to the tip of the mastoid.The lymphatics emerging from the lateral wall drain into the nodes right under the base of the skull anterior to the internal carotid artery and internal jugular vein,or descend to the jugulodigastric node,and the upper deep cervical nodes between the beginning point of the lingual artery and the bifurcate point of the common carotid artery.