777 /; PEBSTONEUM 



12(51 



The portion <zoin<j I" 'he frsophafrus and stomach is called the hepatogastric ligament (iujn- 

 ini iil/nn lir/Hi/iH/fixtriruni). The division of the ligament which jrocs io tlic oesophagus is strong 

 and dense; the division which jror.s to the lesser curvature of the stomach is thin and relaxed. 

 The portion of the lesser omentnm which fjocs to tlic diiodennm is continuous with the first- 

 named portion. It is called the hepatoduodenal ligament {/ft/niiinifuin hepatoduodenole). 

 The riifhl margin of this ligament is free and concave. The hepatocolic ligament (/ir/tiitnntinn 

 kepatocolicum is not invariaUy present. It is a fold of the hepatoduodenal ligament and runs 

 from the posterior surface of the ^all-Madder to the descending portion of the duodenum or 

 possililv to the transverse colon. 



The lesser omentum is tliin, and is continuous with the two layers which cover 

 respectively the anterior and posterior surfaces of the stomach. \Ylien the two 

 layers reach (he lesser curvature of the stomach, they join and ascend as the double 

 fold to the transverse or portal fissure of the liver; to the left of this fissure the double 

 fold is attached to the bottom of the fissure for the duetus venosus, along which it is 



HEPATIC 

 DUCT 



ROUND OMENTAL 



LIGAMENT TUBEROSITY GASTRIC 



IMPRESSION 



POSTERIOR LAYER 

 yOF LESSER 



/AOMENTUM 



OESOPHAGUS 



CYSTIC DUCT 



DUODENAL 

 IMPRESSION 



FREE EDGE 

 OF LESSER 

 OMENTUM 



PORTAL 

 VEJN 



COMMON 

 BILE DUCT 



PANCREATIC DUCT 



PYLORUS 



RIGHT GASTRO- 

 CPIPLOIC ARTERY 

 SUPERIOR PANCREATICO- 

 DUODENAL ARTERY 



I IO, !isl. Structures between the layers of the lesser omentum. The liver has been raised up, and the 

 anterior layer of the omentum removed. Semidiagrammatic. (Cunningham.) 



carried to the Diaphragm, where the two layers separate to embrace the end of the 

 (esophagus. At the right border the two layers are continuous and form a free margin 

 which constitutes the anterior boundary of the foramen of Winslow. Between 

 the two layers, close to this free margin, are the hepatic artery, the common bile 

 duct, the portal vein, lymphatics, and the hepatic plexus of nerves (Fig. OS- 1) all 

 these structures being enclosed in loose areolar tissue which is continuous with 

 (Ilisson's capsule. Between the layers where they are attached to the stomach 

 lie the gastric artery and the pyloric branch of the hepatic artery. 



The greater or gastrocolic omentum (omentum majitx) ( Figs. OSO and 9SO) is the 

 largest peritoneal fold. It consists of a double sheet of peritoneum, folded on 

 itself so that it is made up of four layers. The two layers which descend from the 

 stomach pass in front of the small intestines, sometimes as low down as the pelvis; 

 they then turn upon themselves, and ascend again as far as the transverse colon, 

 where they separate and enclose that part of the intestine. These separate layers 

 may be easily demonstrated in the young subject, but in the adult they are more 



