Textbook of normal histology: including an account of the development of the tissues and of the organs . 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 Section of rabbits liver in which the bile-capillaries(b) have been injected and appear as dark lines betweenthe cells : c, blood-channels. The existence of a distinct independent wall to the bile-capillarieshas been the subject of much conflicting testimony ; according to som
Textbook of normal histology: including an account of the development of the tissues and of the organs . 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 Section of rabbits liver in which the bile-capillaries(b) have been injected and appear as dark lines betweenthe cells : c, blood-channels. The existence of a distinct independent wall to the bile-capillarieshas been the subject of much conflicting testimony ; according to some, these vessels are with-Fig. 224. out distinct walls of their own, while other authoritiesregard the existence of a deli-cate special wall consisting ofa homogeneous structurelessmembrane as presence of a distinctmembranous wall seems ques-tionable ; when it is recalledthat the bile-capillaries reallyrepresent lumina of modi-fied tubular glands, thereseems to be no greater neces-sity for or probability of theexistence of a membrane tolimit the lumen of the bile-tubule than in the case of other glands. The direct transforma-tion of the secreting hepatic cells into the epithelium of the bile-duct at the margin of theFlG- 225- lobule further opposes the assumption of such limitingmembrane, while ex
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Keywords: ., bookauthorpiersolgeorgeageorgea, bookcentury1800, bookdecade1890
