Abstract:

Abstract: Using the silver niterate method of grimelius to study the distributed density and morp- hology of argyrophil cells in the digestive tract of Salamandrella keyserlingii and Hynobius leech- hii. The results shows : The argyrophil cells could be found throughout the digestive tract of two kinds animals, but the highest density appears differently in digestive tracts of two animals: the distributed density of argyrophil cells in digestive tract of Salamandrella keyserlingii is the highest in rectum and the lowest in stomach ,but the distributed density of argyrophil cells in digestive tract of Hynobius leechii is the highest in pylorica and the lowest in oesophagus. The shapes of argyrophil cells about Salamandrella keyserlingii and Hynobius leechhii are similar and the same situation to the distribution: The shape of argyrophil cells is round, ellipse, tapering, shuttle and so on. The argyrophil cells distribute between glandular epithelial cells，between epithelial cells and at the basal region of epithelial cells, but a few in the lamina propria. The origin of distributive mode of argyrophil cells in the digestive tract of Salamandrella keyserlingii and Hynobius Leechii is related to feeding habit, living environment and physiological function in different regions of digestive tracts.