DIGESTION. 



Ill 



vessels, are completely girded with bile-capillaries. Intracellular 

 passages pass from the bile-capillaries into the interior of the liver- 

 cells. After numerous anastomoses, the bile-ducts form larger ones, 

 to leave the liver through the hepatic fissure as two main branches. 

 Toward the exit the bile-ducts become correspondingly larger, with 



Y.1 



VLi 



Fig. 29. Diagrammatic Representation of an Hepatic 

 Lobule. (LANDOIS.) 



I. Vi, Vi, Interlobular veins. Ve, Central vein, c, Capillary between the two. 

 Vs, Sublobular vein. Vv, Vascular vein. A, A, Branches of the hepatic artery, 

 approaching the capsule of Glisson and the larger blood-vessels at r, r, and 

 forming the vascular vein further on, entering the capillaries of the interlobular 

 veins at i, i. g, Branches of the bile-duct, dividing at x, x, between the liver- 

 cells, d, d, Situation of liver-cells in the capillary network. II. Isolated liver- 

 cells, at c lying upon a capillary blood-vessel and forming a fine bile-duct at a. 



increase in the thickness of their walls. These are found to contain 

 fibrous tissue with bundles of nonstriped muscle-fibers plus small 

 mucus-secreting glands. Within each lobule are three networks: a 

 network of blood-capillaries, a network of liver-cells, and a network 

 of bile-capillaries. 



