. Text-book of normal histology: including an account of the development of the tissues and of the organs. y the blood-VeSSels and thelobules: a, interlobular connective tissue ; ^, f, branches of por- , ■. J <. T!, ] tal vein and of hepatic artery ; ^, bile-ducts ; ^, intralobular vein. UUC - UUCtS. 1 ne de- marcation of the indi-vidual lobules depends upon the development of this interlobularconnective tissue, known as the capsule of Glisson; when welldeveloped, as in the liver of the hog, the lobules are defined withgreat distinctness, being completely surrounded and separated fromtheir
. Text-book of normal histology: including an account of the development of the tissues and of the organs. y the blood-VeSSels and thelobules: a, interlobular connective tissue ; ^, f, branches of por- , ■. J <. T!, ] tal vein and of hepatic artery ; ^, bile-ducts ; ^, intralobular vein. UUC - UUCtS. 1 ne de- marcation of the indi-vidual lobules depends upon the development of this interlobularconnective tissue, known as the capsule of Glisson; when welldeveloped, as in the liver of the hog, the lobules are defined withgreat distinctness, being completely surrounded and separated fromtheir neighbors by the connective tissue. In the human liver, on thecontrary, the interlobular connective tissue is very scanty, this defici-ency producing poorly-defined lobules, the boundaries of which arescarcely indicated by the irregular areas of connective tissue occupy-ing the spaces between the approximated surfaces of three or morehepatic lobules. The arrangement of the blood-vessels is so important in de-termining the general construction of the lobule that an early con- THE DIGESTIVE TRACT. 177. Fig. 218. Section of human liver, showing general arrangement of lobules : a, interlobular (portal) vein; b,intralobular (hepatic) vein ; c, hepatic artery; d, bile-duct; the boundaries of the lobules are imper-fectly defined by the irregular areas representing the poorly-developed capsule of Glisson. sideration of the vascular supply is necessary to an understanding ofthe structure of the lobule. The interlobular vessels, situatedbetween the lobules at their periphery,are continuations of those passingthrough the transverse fissure; theyare the portal vein, the hepatic ar-tery, and the bile-duct. The portal vein, the largest ofthe interlobular vessels, gives off nu-merous branches, which enter thelobule at the periphery and break upinto twigs, forming a rich, freely anas-tomosing intralobular capillarynet-work. The meshes of this net-work are somewhat elongated andtrapezoidal in
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