[Phenomenon of in vivo rejection of intestinal villi and their distal fragments].

The contents and biopsy specimens of the mucous membrane of different parts of the small intestine of healthy polyfistula dogs and enterobiopsy specimens from intact dogs were examined by means of binocular magnification. It was demonstrated that the ability of typical and altered villi for being rejected or for secretion (in the process of shortening) of distal fragments of varying size to the surface of the mucous membrane and to the intestinal cavity where the rejected elements can exist for a certain period of time without undergoing break down does not depend on biopsy technique or on food supply and digestion.