Abstract:

The distribution and density of endocrine cells in the digestive tract of Lacerta vivipara were studied by the method of ABC (avidin-biotin complex method) immunohitochemical technique with gut hormone antisera, to study Lacerta vivipara digestive tract of somatostatin on the role of animal nutrition and metabolism. The result indicated that Somatostatin cells distributed throughout the digestive tract from Cardiacus to ileum. Somatostatin cells were not detected in the oesophagus and rectum. The density of somatostatin cells was the highest in the pylorus, followed by stomach part, and they were rarely observed in small intestine. Somatostatin cells were mainly in round shape and shuttled shape. They widely lied between epithelial cells, between glandular epithelial cells and at the bottom of epithelia. The distribution density of endocrine cells was related to its feeding habit, food component and living environment. And morphologies of endocrine cells were conformable with the endocrine and exocrine functions.