[Ultrastructure of the lymphatic capillaries of the diaphragm and their interrelationship with peritoneal mesothelium]

In 28 mature rats, ultrastructure of the diaphragmal lymphatic capillaries and mesothelial tegmen was studied. Interrelation of their cellular elements and possible ways of metabolic absorbtion from the abdomen were clarified. The diaphragmal lymphatic capillaries were demonstrated to situate under mesothelial cells and they are separated by a thin layer of longitudial collagenic fibers. As cross section of the lymphatic capillary demonstrates, the capillary wall consists of 3--6 endothelial cells with a set of organelles, among which are: mitochondria, Golgi's complex, some pinocytotic vesicles.