A Histomorphological study on digestive system of adult Hedgehog

Abstract

Four adult Hedgehogs (Erinaceus euopaeus) (two males and two females) captured from field were used in this test. The samples were quickly taken after killing, and fixed with 10% neutral HCHO. Paraffin sections were done along with HE dying. The results showed that their oesophagus were composed of stratified squamous epithelium, with light monkeiatinized shallow cell and well developed oesophageal glands. There are circular wrinkled wall and intestinal villus on the mucosa of the small intestine with developed small intestinal glands, long and thick intestinal villi in the duodenum, where exists Paneth cell on the basis of intestinal glands. It has isolated lymph nodule in the proper layer of the intestinum jejunum, as well as assemble lymph nodule in the proper layer of mucosa of the ileum. The number of lymph nodule in large intestine increases as compared with others, in which there is longitudinal wrinkled wall, but no intestinal villi. More developed large intestinal glands can be seen, where the cup cell rises gradually from forward to backward along intestinal system. In addition, there is no very clear boundary among liver lobule because the connective tissue among it is not developed well, and so does pancreas.

Keywords

Hedgehog / Erinaceus euopaeus / Digestive system / Histomorphology