742 A MANUAL OF AN ATOM V 



the Spigelian lobe. The right branch gives off the cyslic artery, and 

 this divides into two branches, superior and inferior, which ramify 

 on the upper and under surfaces of the gall-bladder. 



The pyloric vein passes from left to right, and opens into the 

 vena portse near the pylorus. 



The right gastro-efiploic vein passes from left to right, and opens 

 into the superior mesenteric vein near its termination. 



The fancreatico-duodenal vein takes up blood from the right 

 end of the pancreas and from the duodenum, and opens into the 

 superior mesenteric vein near its termination. 



The cystic vein usually, ends in the right division of the vena 

 portae. 



All the veins which return the blood from the stomach, duodenum, 

 pancreas, and spleen are destitute of valves, so that the blood can 

 regurgitate in cases of portal obstruction. 



Coeliac Glands. — The glands of this group are numerous. They 

 surround the coeliac axis, and extend over the aorta as low as the 

 origin of the superior mesenteric artery. They receive their 

 afferent vessels from the gastric, pancreatic, splenic, and hepatic 

 glands, and their efferent vessels either join the intestinal lymphatic 

 trunk (or trunks) of the superior mesenteric glands, or open inde- 

 pendently into the receptaculum chyli. 



Gastric Lymphatic Glands. — These are arranged in two groups, 

 superior and inferior, the former lying along the small curvature of 

 the stomach, and the latter along the great curvature. They 

 receive their afferent vessels from the stomach, and their efferent 

 vessels pass to the coeliac glands. 



Pancreatic Glands. — ^These lie along the superior border of the 

 pancreas. They receive their afferent vessels from that organ, and 

 their efferent vessels pass to the coeliac glands. 



Splenic Glands. — These are numerous, and are situated near the 

 hilum of the spleen in contact with the tail of the pancreas. They 

 receive their afferent vessels from the spleen, and their efferent 

 vessels, having been joined by some of those from the left half of 

 the great curvature of the stomach, pass to the coeliac glands. 



Hepatic Glands. — These are situated between the two layers of 

 the gastro-hepatic omentum near the portal fissure. They receive 

 as afierent vessels those of the deep lymphatics of the liver which 

 accompany the branches of the portal vein, and also some of the 

 superficial lymphatics of the inferior surface of the liver, and their 

 efferent vessels pass to the coeliac glands. 



Vena Portae. — ^This vein is formed by the union of the superior 

 mesenteric and splenic veins, and is about 3 inches in length. It 

 commences on a level with the body of the first lumbar vertebra 

 a little to the right of the middle line, where it lies behind the 

 neck of the pancreas. It ascends behind the first part of the 

 duodenum, and then between the two layers of the gastro-hepatic 

 omentum in front of the foramen of Winslow, where it has anterior 

 to it the hepatic artery and common bile-duct, the artery being 



