494 A MANUAL OF ANATOMY. 



The Stomach. Figs. 96 to 100, 103, 104, 105. 



The stomach lies on the left side of the abdomen, below the 

 diaphragm and left lobe of the liver. It is about twelve 

 inches long, four inches wide, and weighs four and one-half 

 ounces. It is entirely covered by peritoneum. See De- 

 velopment, page 462. Its long 1 axis is placed obliquely 

 from above, behind, and at the left, to downward, forward, 

 and to the right. 



It has two opening's, the cardiac, the opening of the 

 oesophagus into the stomach, and the pyloric, the beginning 

 of the intestinal canal. There is no constriction about the 

 cardia, but around the pylorus is a muscular collar forming 

 a sphincter. 



The short border, or the lesser curvature, is three and 

 one-half inches long and concave. From it passes the 

 gastrohepatic omentum to the liver. See above. From 

 the longer border, or the greater curvature, hangs down 

 the broad peritoneal apron, the greater or gastrocolic 

 omentum. 



The fundus is the dilated end of the stomach to the left 

 of the cardia. At the oesophagus the anterior and posterior 

 layers of peritoneum come together and pass on to the 

 diaphragm, forming the g-astro phrenic ligament. 



To the right along the lesser curvature these layers after 

 joining, form the g-astrohepatic omentum and continue to 

 the liver, while below from the greater curvature these two 

 layers unite to form the great omentum, and returning 

 again to the colon may also be called the gastrocolic 

 omentum. 



Relations. The anterior surface is in relation with the 

 liver, diaphragm, and anterior abdominal wall. The area 

 of stomach opposed directly to the abdominal wall is re- 

 presented by a triangle formed on the right by the anterior 



