Textbook of normal histology: including an account of the development of the tissues and of the organs . eir primitive type of the tubular glandthe bile-capillaries appear as minuteducts placed centrally within the cordsof the hepatic cells, the biliary passagesrepresenting lumina of tubular acinilined with secreting glandular epithe-lium. In man, however, the liver-cellsare usually bordered on all sides, ex-cept on that lying next the blood-vessels, by the delicate bile-canaliculi,the latter never interposing betweenthe cells and the blood-channels. The bile-capillaries exist as narrow(1-2 ,j


Textbook of normal histology: including an account of the development of the tissues and of the organs . eir primitive type of the tubular glandthe bile-capillaries appear as minuteducts placed centrally within the cordsof the hepatic cells, the biliary passagesrepresenting lumina of tubular acinilined with secreting glandular epithe-lium. In man, however, the liver-cellsare usually bordered on all sides, ex-cept on that lying next the blood-vessels, by the delicate bile-canaliculi,the latter never interposing betweenthe cells and the blood-channels. The bile-capillaries exist as narrow(1-2 ,j-) clefts between adjacent liver-cells, maintaining about the samediameter throughout the lobule ; at the periphery the intercellularchannels pass into the larger, though still small, interlobular bile-ducts. The hepatic cells between which the bile-capillary takes itscourse become replaced at the periphery of the lobule by the lowepithelium of the bile-duct, the basement-membrane present in thelatter fading away into the delicate connective tissue holding togetherthe cords of liver-cells. Fig. Section of liver of frog, exhibiting tubu-lar character of gland : a, blood-channelscontaining corpuscles ; i, lumina of hepaticcylinders which correspond to bile-capil-laries ; c, pigment-cell. i8o NORMAL HISTOLOGY.


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Keywords: ., bookauthorpiersolgeorgeageorgea, bookcentury1800, bookdecade1890