家兔胃淋巴管铸型的观察

OBSERVATION OF THE CORROSION CASTS OF STOMACH LYMPHATICS IN THE RABBIT

用淋巴管间接注射法,将低浓度的Mercox分别注入家兔胃粘膜层、粘膜下层、肌层和浆膜层后,制成铸型样品,在扫描电镜下观察胃壁各层淋巴管的三维结构、微细立体分布和相互交通情况。在胃粘膜深层,可见呈盲端的毛细淋巴管;粘膜下层、肌层和浆膜层既有毛细淋巴管网,也有淋巴管丛。在淋巴管铸型上,清晰地显示出具有特征性的辦膜切迹,相当淋巴管双瓣膜所在的位置。此外,在铸型表面还可以见到淋巴管内皮细胞核的压迹。

The three-dimensional organization and anastomoses of lymphatics in the rabbit stomach were demonstrated by scanning electron microscopy of lymphatic corrosion casts. Casting medium is the diluted low viscosity Mercox used for intraparenchymatous injection into the mucosal, submucosal, muscular and serous layers of the stomach. The lymphatic capillaries with blind ends were found in the deep mucosa and the lymphatic capillary networks and lymphatic plexus were observed in all the submucosal, muscular and serous layers. The distinct imprints which correspond to the bicuspid valves of lymphatics and the oval or fusiform impressions of the endothelial nuclei were seen on the casts.