Histological Architecture and Histochemistry of Duodenum of the Sheep (Ovis aries)

Abstract

The duodenal tissue collected from five adult sheep. The duodenal tissues fixed in 10% neutral buffered formalin were processed for light microscopy. The pointed or blunt duodenal villi were lined by simple columnar epithelium with few goblet cells. The intestinal glands were simple branched tubular coiled type had predominance of acidic mucopolysaccharides. Lamina muscularis mucosa of varing thickness was interrupted because of infiltration of lymphoid tissue. The submucosa was consisted of submucosal having predominance of acidic mucopolysaccharides. Tunica muscularis had inner circular and outer longitudinal layers of smooth muscles. Histochemical studies presented that crypts of Lieberkuhn had predominance of acidic mucopolysaccharides whereas Brunner’s glands were having predominance of neutral mucopolysaccharides.