98o 



HUMAN ANATOMY. 



group, following the course of the superior pancreatico-duodenal vessels, while others 

 again accompany the inferior pancreatico-duodenal vessels to terminate in nodes 

 belonging to the mesenteric group. 



The Liver. — The lymphatics of the liver are arranged in perilobular net-works 

 from which stems pass in two principal directions ; those Which come from the deeper- 

 portions of the net-work follow the course of either the portal or hepatic venous 

 branches, while those arising from the net-works surrounding the more superficial 

 lobules pass to the surface of the liver, upon which they anastomose extensively to 

 form a subserous net-work from which efferent stems arise. 



The deep efferents which accompany the branches of the portal vein take their 

 course in the substance of the capsule of Glisson, two or three stems accompanying 

 each of the larger branches of the vein and anastomosing with one another to form 

 a plexus around the vessel and the accompanying branches of the hepatic artery and 

 bile-duct. As the branches of the vein are followed to their union to form larger 

 trunks, the accompanying lymphatics unite to a considerable extent, so that from 

 fifteen to twenty stems emerge at the transverse fissure and terminate in the hepatic 



Fig. 822. 



kk II JgfJ c 



n J p I \ \ 



q p c d 



Lymphatics of postero-inferior surface of liver, a, a, trunks arising; from \ iciiMt\ of right border of Uver and 

 going to one of the nodes surrounding inferior cava (C) as it enters thorax; i5, trunk arising from inferior sur- 

 face of right lobe and emptying at hilum into nodes resting on neck of gall-bladder; c, trunks arising near gall- 

 bladder and going to lower hiTum-nodes ; rf, trunks running on attached surface of gall-bladder; e,e,e, trunks 

 that take origin from superficial net-works and disappear in li\er to follow branches of portal vein to hilum- 

 nodes ; /,/,/, caval nodes receiving vessels from Spigelian lobe {g')\ h, h, principal trunks of left lobe; i, i, i, 

 trunks that arise from superficial net-works and dip into liver to join vessels in capsule of Glisson ; 7, trunks 

 from superior surface of liver which follow round ligament to hilum-nodes; k, trunks from superior surface that 

 end in nodes in posterior part of longitudinal fissure (/) ; ni, trunks connecting these nodes with those in hilum; 

 n (14), nodes connected with terminal part of oesophagus; o. o, o (15), hilum nodes which receive all trunks 

 accompanying vena porta and large part of those from inferior surface; ;>,/>, vessels from quadrate lobe {q). 

 (Sappey.*) 



nodes situated in the fissure. The stems which accompany the branches of the 

 hepatic vein also form more or less distinct plexuses, and, when they emerge from 

 the liver substance, are from five to six in number. They continue upward along 

 the inferior vena cava, pass with it through the diaphragm, and terminate in the nodes 

 situated on the convex surface of the diaphragm around the orifice for the vena cava. 

 The S7cperftcial vessels have more diversified courses, and it will be convenient 

 to consider them as belonging to two groups according as they arise from the 

 superior or inferior surface of the liver. And first those arising from the net-work 

 of the superior surface mav be described. Those which arise toward the posterior 

 portion of the surface of both the right and left lobes pass mainly toward the vena cava 

 inferior and ascend with it through the diaphragm to terminate in the nodes situated 



* Description et Iconographie des Vaisseaux lymphatiques, 1874. 



