LYMPHATICS IN RELATION TO PEYER'S PATCHES IN INDIAN BUFFALO CALVES (Bubalus brrbalis)

Abstract

Presence of dome, the extension of lymphoid follicles of Peyer's patches (PP}, in the mucous membrane of antimesenteric wall of ileum, contributed to the variations in the pattern of distribution of lymphatics. Lacteals were absent in domes. Lymphatic capillaries closely associated with the basement membrane of dome epithelium, ran parallel to the surface and continued down in the lamina propria, forming a rich plexus of lymphatics along with the continuation of lacteals from adjacent villi. Small vessels emanating from this plexus coursed through muscularis mucosae to form a rich plexus in the dense submucosal lymphocytic infiltration (SLI). submucosal lymphatics existed as plexus in the SLI, perifollicular lymph capillaries, large lymph vessels in the interfollicular zone and as extensive plexus at the base of follicles. In as much as PP were absent on the mesenteric side, domes were also