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A comparative LM and SEM study of the structure of the mucosal glands of the gallbladder in two species of canids: the dog and the Chinese raccoon dog
open access
Abstract
The results of the light and scanning electron microscopic observations indicate interspecies differences in the density, type and size of secretory units and also their openings. In the raccoon dog the number of secretory units is 30 times greater than in the dog and the units are predominantly simple glands with small openings. In the dog mostly 2 or 3 secretory units with common wide openings were observed. The SEM images of the NaOH macerated mucosa of the gallbladders showed a connective tissue framework around the glands composed of flat lamina with an irregular pattern of fine collagen fibres and numerous fenestrations. The collagen network around the openings of the glands is more compact and provides mechanical support for the glands of the gallbladder.
Abstract
The results of the light and scanning electron microscopic observations indicate interspecies differences in the density, type and size of secretory units and also their openings. In the raccoon dog the number of secretory units is 30 times greater than in the dog and the units are predominantly simple glands with small openings. In the dog mostly 2 or 3 secretory units with common wide openings were observed. The SEM images of the NaOH macerated mucosa of the gallbladders showed a connective tissue framework around the glands composed of flat lamina with an irregular pattern of fine collagen fibres and numerous fenestrations. The collagen network around the openings of the glands is more compact and provides mechanical support for the glands of the gallbladder.
Keywords
mucosal glands; gallbladder; LM and SEM microscopy; dog; Chinese raccoon dog
About this articleTitle
A comparative LM and SEM study of the structure of the mucosal glands of the gallbladder in two species of canids: the dog and the Chinese raccoon dog
Journal
Issue
Pages
105-110
Published online
2006-03-09
Bibliographic record
Folia Morphol 2006;65(2):105-110.
Keywords
mucosal glands
gallbladder
LM and SEM microscopy
dog
Chinese raccoon dog
Authors
H. Jackowiak
Sz. Godynicki