. On the anatomy of vertebrates [electronic resource] . ir structure has applied tothese i acini the term usuallygiven to such secondary divisionsas the i lobulus Spigelii, and hasfounded his nomenclature thereon, it will be retained. Kiernans6 lobules range in size from -^th to -j^th. inch in diameter, pre-sent a foliated contour in lon-gitudinal section, fig. 371, l, 3,a polygonal one in transverse,fig. 378 : a venule issuing fromtheir centre, fig. 371, 5 and 7,connects them with the initialor c sublobular branches ofthe hepatic vein (laid open infig. 371): the rest of theirsurface is attach
. On the anatomy of vertebrates [electronic resource] . ir structure has applied tothese i acini the term usuallygiven to such secondary divisionsas the i lobulus Spigelii, and hasfounded his nomenclature thereon, it will be retained. Kiernans6 lobules range in size from -^th to -j^th. inch in diameter, pre-sent a foliated contour in lon-gitudinal section, fig. 371, l, 3,a polygonal one in transverse,fig. 378 : a venule issuing fromtheir centre, fig. 371, 5 and 7,connects them with the initialor c sublobular branches ofthe hepatic vein (laid open infig. 371): the rest of theirsurface is attached by similarbeginnings of hepatic ductsand absorbents, by terminalbranches of the hepatic arteryand portal vein, and by nerves,to the thin stratum of areolartissue connecting one lobulewith others. Each is composedof ramifications of its suspen-sory i intralobular venule, ofarterial capillaries, of a plexusof portal capillaries, a plexusof biliary passages, of nerves,lymphatics, and intermediate cell-substance—the essential part of The Section mag-. Branches of the portal vein, Human, cxlviii the o-land which the other structures subserve. LIVER OF MAMMALIA. 489 nified of a f sublobular venule, fig. 371, shows the commonlyhexagonal outline of the flattened bases of the lobules 4, the ter-minations of the e intralobular venules 7, the interlobular fissures 8, and the interlobular spaces 373 9, at their angles: these arecontinued into the intervals be-tween the more or less roundedlateral surfaces of the closelypacked lobules. The ramifica-tion of the intralobular venule5 is seen in the longitudinalsection of the lobules, l, 3. Inthe Seal the intralobular veinsat their exit from the lobulesenter hepatic-venous canals,where they unite into branches,which are connected by a finecellular tissue, forming a sheathround the hepatic The portal vein, in Mam-mals, fig. 372, is formed by the superior, b, and inferior, c, mesenteric veins, by the splenic vein,d, by the gastro-epi
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