492 A MANUAL OF ANA TOMY. 



nite point), and drawn to the right, crossing the middle line 

 of the body midway between the ensiform and the umbili- 

 cus, reaching the right ninth costal cartilage (another blind 

 point), then running parallel with the lower margin of the 

 thorax to the eleventh rib, then along the lower border of 

 this rib to the spine. 



The interlobular notch is half-way between the right 

 vertical line (see page 435) and linea alba. The fundus of 

 the gall bladder lies just below and behind the tip of the 

 cartilage of the tenth right rib, or in the notch between the 

 right rectus muscle and the thoracic margin. The cartilages 

 given above are " areas" not "points," hence considerable 

 latitude is allowed. 



The Gastrohepatic Omentum. Diag. 36, No. I. Fig. 103. 

 The double layer of peritoneum which extends from the 

 transverse fissure and under surface of the liver to the upper 

 border of the stomach and first portion of the duodenum 

 is the gastrohepatic omentum. It consists of three distinct 

 parts : (i) A superior, triangular portion of a dense white 

 ligamentous structure, the tendinous portion. (2) A 

 middle, oval portion opposite the lesser curvature of the 

 stomach. This segment is so thin that it is easily torn and 

 through it can be seen the Spigelian lobe of the liver, the 

 flaccid part. (3) An inferior part which is thick, massive, 

 and at the right ends in a rounded border which forms the 

 anterior margin of the foramen of Winslow. In this free 

 margin are the hepatic vessels and nerves. The vessels are 

 the portal vein, hepatic artery and duct. The duct is to the 

 right, the artery to the left, and the vena porta behind the 

 two. (For further information consult a careful article by 

 Byron Robinson, on the Gastrohepatic Omentum, in the 

 (N. Y.) Medical Record for Aug. 10, 1895.) 



