ANATOMY IN A NUTSHELL. 501 



Psoas magnus muscle and help to drain the spinal canal, posterior and lateral 

 abdominal walls. 



The lymphatic vessels of the testicle are. (1) superficial which arc from 

 the surface of the tunica vaginalis, and (2) deep ones which are from the 

 epididymis and body of the testis. They empty into the lumbar nodes. 



The lymphatic vessels of the kidney are, (1) superficial and ('_') deep. 

 These two vessels mute at the hilum to join the vessels from the ureter and 

 suprarenal capsule. They end in the lumbar nodes. 



The lymphatic vessels of the stomach are two set>. (1) SUPERFICIAL ONES 

 in the subserous coat and (2) deep ones in the submucous coal. The ves- 

 sels which drain both surfaces of the stomach pass alongthe lesser curvature to 

 end in nodes at the pyloric end of the stomach. Those which drain the fundus 

 pass to the splenic nodes and those which pass along the greater curvature of 

 the stomach join lacteals at the root of the mesentery. 



The lymphatic nodes of the stomach lie within the lesser omentum and 

 around the cardiac and pyloric orifices along the curvatures of the stomach. 



The lymphatic vessels of the spleen are. (1) superficial which lie under 

 its peritoneum, and (2) deep which lie in its substance. They end in the thoracic 

 duet after receiving the pancreatic lymphatic vessels. 



The nodes of the spleen are situated in its hilum. 



The lymphatic vessels of the small intestine are called lacteals and are, (1) 

 superficial which are placed between the layers of the muscular coat, or 

 between the nmscnlar and peritoneal coats. They run longitudinally. (2) 

 Deep which are situated in the submucous tissue and run transversely with 

 the mesenteric vessels. These empty into the thoracic duct. 



The lymphatic nodes of the small intestine, called mesentery node-, lie 

 between the layers of the mesentery, and they are about one hundred and 

 fifty in number. They vary in size from that of a pea to that of a small almond, 

 and the largest ones are situated near the duodenum and the ilio-csecal valve. 

 In these positions they are also more numerous. 



The lymphatic vessels of the large intestine are in two sets. (1) THOSE of 

 the csecum, ascending colon, and transverse colon which pass to the mesenteric 

 nodes, and (2) those of the descending colon, sigmoid flexure, and rectum 

 which pass to the lumbar nodes. 



The lymphatic nodes of the large intestine are not so numerous as those of 

 the small intestine and are very few along the transverse colon. They are -it- 

 uated upon the intestine itself or along the vascular arches of the arteries. 



LESSON CLXVI. 



The lymphatic vessels of the liver are in two sets. (1) THE SUPERFICIAL SET 



which lie in the subperitoneal areolar tissue, and on the convex surface of the 

 liver. Those vessels on the convex surface of the liver are divided into the 

 following groups, (a) those branches which rnn forward ami then upward in the 



broad ligamenl pass through the Diaphragm to the anterior mediastinal node-.. 

 These anterior mediastinal nodes are situated on the Diaphragm in front of the 



