Vyrenko Iu E, Shishlo V K, Mironov A A, Mironov V A
Arkh Anat Gistol Embriol. 1988 Sep;95(9):31-5.
The investigation has been performed on 17 mature dogs. With the aim to investigate the internal surface of the thoracic duct, the methods of scanning electron microscopy of native, impregnated and corrosive preparations have been used. The analysis of the scannograms obtained demonstrates that the valves of the thoracic ducts are mainly bicuspid, have a typical infundibular form, their cuspides are fused, forming a mesentery-like fold on the duct wall. It plays the main role in ensuring unilateral transport of lymph. The microrelief of the thoracic duct endothelium possesses a rather complex organization. The following relief formations are distinguished in endotheliocytes: 1. nuclei-containing eminence, 2. marginal processes, 3. separate microvilli. The dependence of the microrelief on arrangement of endothelial cells in the valvular area or intervalvular fragments is noted. This is also concerned orientation of endotheliocytes; therefore, predominance of stretched endotheliocytes of the postvalvular fragment can be connected with demonstration of viscous friction force in the lymph stream, that produces deforming and orienting influence on the endotheliocytes.
对17只成年犬进行了研究。为了研究胸导管的内表面，采用了对天然、浸渍和腐蚀标本进行扫描电子显微镜检查的方法。对所获得的扫描图像的分析表明，胸导管的瓣膜主要为双尖瓣，具有典型的漏斗状形态，其尖瓣融合，在导管壁上形成肠系膜样褶皱。它在确保淋巴的单向运输中起主要作用。胸导管内皮的微观形态具有相当复杂的结构。在内皮细胞中可区分出以下形态结构：1. 含核隆起；2. 边缘突起；3. 单个微绒毛。注意到微观形态与瓣膜区域或瓣膜间片段中内皮细胞排列的相关性。这也涉及内皮细胞的取向；因此，瓣膜后片段中伸展的内皮细胞占优势可能与淋巴流中粘性摩擦力的表现有关，这种摩擦力对内皮细胞产生变形和取向影响。
