224 OUTLINES OF EQUINE ANATOMY. 



neighbouring viscera are termed omenta : we have noticed 

 the gastro-hepatic, and gastro- colic omenta ; from the left 

 extremity of the greater curvature the (jastro-spleniG 

 omentum passes to the spleen, which is suspended between 

 its two folds ; and to the extreme left part of the greater' 

 curvature the cjastric-plirenic omentum is reflected from the 

 diaphragm, it terminates in forming the cardiac ligament 

 surrounding the terminating portion of the oesophagus. 



In the male at the internal abdominal rings on either 

 side at the posterior part of the cavity the peritoneum is 

 reflected through the inguinal canal into the scrotum, 

 forming tunica vaginalis scroti, which by a serous frsenum 

 is connected with tunica vaginalis testis, a reflection from 

 the roof of the cavity. There is also a slight fold connecting^ 

 the tvjo terminal portions of the vasa defer entia together, between 

 tuhich lies the third vesicula seminalis. In the female from 

 the u]3per surface of the bladder it passes to the anterior 

 portion of the vagina and invests the uterus, from the 

 horns of which it passes to the roof of the cavity, forming- 

 the hroad ligaments, which anteriorly contain the ovaries 

 and fallopian tubes, and which have the round ligaments of 

 the uterus and those of the ovary between their double layers. 

 Between the two horns the serous membrane is reflected 

 backwards over the upper surface of the body of the uterus 

 to the vagina, from which it passes upwards to the under 

 surface of the anterior part of the rectum. 



By incision through the terminal portion of the oesophagus, 

 through the rectum, and through their serous connections 

 to the neighbouring organs, especially up against the spine, 

 the intestines and stomach may be removed from the abdom- 

 inal cavity. In the process we expose the pancreas, a body 

 resembling a salivary gland in structure, appearance, and al- 

 most in function. It assumes the form of a number of greyish 

 white lobuli placed around the anterior mesenteric artery, 

 moulded in between the various structures in this neigh- 

 bourhood. It is mainly attached to the double colon, from 

 which it rec[uires careful separation, and will be found for 

 the most part on the right side of the spine, which portion 

 is termed its head, and around which the duodenum curves 

 in its upward course. Its various lobules give off ducts 

 which unite and reunite to form finally the pancreatic 

 duct, which passes into the gastro-hepatic omentum, where 

 it unites with the biliary (or hepatic) duct and terminates at 



