12,2 



LYJIPHATIC SYSTEM OF THE OX AND SHEEP 



glands receive vessels from the ileum and CEecum and their lymph gland^ The^ 

 efferent vessels go to the common intestinal efferent or to other colic glands. 



(5) The rectal lymph glands (Lgg. rectales) are situated along the dorsal and 

 lateral surfaces of the rectum. Thej^ receive afferent vessels from the rectum, 

 anus, and terminal part of the colon. Most of the efferent vessels go to other 

 glands of the group, but some unite to form one or two large trunks which end in the 

 internal iliac lymph glands. There are many small hsemolymph glands in relation 

 to the rectal lymph glands. 



(6) The pancreatico-intestinal lymph glands (Lgg. pancreatico-intestinales) 

 lie on the ventral surface of the pancreas and along the right part of the latter in 

 relation to the duodenum. Some are at the pancreatic notch about the portal vein 

 and its affluents, and others are covered by the adhesion of the colon to the gland. 

 Their afferent vessels come from the pancreas, the duodenum, and the adjacent 

 part of the colon. The efferent vessels go to the common intestinal efferent. 



Ca, Caecum; C, colon; 



Fig. 604. — Intestine of Ox, Spread Out. 

 D, duodenum; II, ileum; J, jejunum; R, rectum; m 

 Edelmann.) 



mesenteric lymph glands. (After 



(7) The hepatic lymph glands (Lgg. hepaticse) are situated in and ventral to 

 the portal fissure. Most of them are grouped about the portal vein, the hepatic 

 artery, and the bile duct, and are covered by the pancreas; but some are ventral 

 to the pancreas. Their average number is ten to fifteen, but twenty or more have 

 been counted. Their length varies from less than half an inch to three inches (ca. 

 1-7 cm.). They receive vessels from the liver, pancreas, and duodenum, and from 

 the abomasal lymph glands. Their efferent vessels converge to a large trunk 

 which passes along the portal vein and joins the common efferent vessel of the 

 intestinal glands or that of the gastric glands. 



The prefemoral or subiliac lymph gland^ is situated on the aponeurosis of the 



obliquus abdominis externus, at the anterior border of the tensor fascise latse and 



about a handbreadth above the patella. It has an elongated elliptical outline 



and is flattened. Its average length is three or four inches (ca. 8-10 cm.), and its 



' This is also termed the precrural or suprapatellar gland. 



