The development of the human body; a manual of human embryology . FlG. 177.—Injected Bile Capillaries of Pig Embryos of (A) 8 cm.,(S) 16 cm., and (C) of Adult Pig.—(Hendrickson.) veloped until some time after birth. They depend uponthe relative arrangement of the branches of the portal andhepatic veins; these at first occupy distinct territories ofthe liver substance, being separated from one another bypractically the entire thickness of the liver, although ofcourse connected by the capillaries which lie between thehepatic cylinders. During development the two sets ofbranches extend more deepl


The development of the human body; a manual of human embryology . FlG. 177.—Injected Bile Capillaries of Pig Embryos of (A) 8 cm.,(S) 16 cm., and (C) of Adult Pig.—(Hendrickson.) veloped until some time after birth. They depend uponthe relative arrangement of the branches of the portal andhepatic veins; these at first occupy distinct territories ofthe liver substance, being separated from one another bypractically the entire thickness of the liver, although ofcourse connected by the capillaries which lie between thehepatic cylinders. During development the two sets ofbranches extend more deeply into the liver substance,each invading the territory of the other, but they canreadily be distinguished from one another by the fact thatthe portal branches are enclosed within a sheath of con- 330 THE DEVELOPMENT OF THE HUMAN BODY. nective tissue (Glissons capsule) which is lacking to thehepatic vessels. At about the time of birth the branches ofthe hepatic veins give off at intervals bunches of terminalvessels, around which branches of the portal vein a


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectembryol, bookyear1902