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                                                Gallbaldder - histology slide
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                                                This is a histology slide of the gallbladder. This organ is lined by a single layer of tall columnar cells and is thrown into folds when the bladder is empty. There is no submucosa. A thin band of smooth muscle and a serosa of loose fibrous tissue are present. 
 
Histology image descriptions and photography by Frank N. Miller, M.D.; histology image courtesy of Uniformed Services University of the Health Sciences. 
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