224 SPECIAL ANATOMY. 



Omenta; the inferior larger envelopes the Jejunum and Ileum, 

 and forms the mesentery (mesentericum) ; the smaller contain : 

 C&cum, Colon ascendens and descendens and rectum, and form 

 their mesenteries. 



455. Route, or course, of the Visceral layer. 

 [Reflections of the Peritonseum Viscerale.~] 



1. From the inferior part of the pars tendinea of the diaphragm, 

 the Peritoneum passes to the obtuse posterior border of the liver, 

 and forms Lig. coronarium hepatis, the right and left extremity 

 of which is considered as Lig. triangulare dextrum and sinis- 

 trum; continues to the superior extremity of the spleen, and 

 forms: Lig. phrenico-lienale ; lastly, to the cardia of the sto- 

 mach, forming a right and left lig. phrenico-gastricum on the 

 sides of the cardia. 



456. 2. From these places the Peritoneum passes : 



a. over the superior surface of the liver to the inferior surface covering it 

 entirely, with the exception of lobulus Spigelii. 



b. over the anterior wall of the Stomach as far as the great curvature. 



c. over the whole Spleen, except its hilus; forming between its internal 

 surface and the fundus of the Stomach the lig. gastro-lienale, the posterior layer 

 of which passes from sacc. cpiploicus. 



457. 3. The Peritonseum afterwards proceeds : 



a. from the right portion ofporta hepatis to the right kidney and the angle of 

 the Colon ascendens (forms lig. hepatico-renale s. colicum at the right border of 

 foram. Winslomi). 



From the left anterior portion, of the Porta (before ven. porta, vasa and duct, 

 hepatic, downwards) to the anterior wall of the duodenum, forming the lig. 

 hepatico-duodenale. 



From the/ossa ductus venosi towards the left, to the smaller curvature of the 

 stomach, forming the anterior layer of the small omentum, omentum minus s. 

 lig. hepatico-gastricum. 



This attaches itself with its inferior concave border to the small curvature 

 of the stomach, with its superior to:' 1. The porta hepatis. 2. The (Esophagus 

 and the diaphragm ; bounded on the right by the hepatic vessels and gall ducts 

 (behind them foram. Winslowii), to the left by the (Esophagus. 



b. From the spleen on the right into the great omentum, on the left to the 

 superior angle of the colon descendens. 



c. From the stomach (over the anterior surface of the colon transv.) and 

 behind the anterior abdominal walls, before the small intestines, downwards 

 into the pelvis. Here it becomes reflected upon itself, and ascends to the 

 Pancreas (Arnold. According to others it goes immediately upon the superior 

 surface of colon, transv.), [covering the posterior surface of the transverse arch 

 of the colon, and forming the post, layer of mesocolon trans.], and thus forms 

 the first [anterior] and fourth [posterior] layer of the great omentum. 



Omentum (s. epiploon) majus, the great omentum, reaches in adults as low 

 as the femoral arch, is transparent and thin, in fat persons much beset with 



