i88 THE POCKET ANATOMY 



Position : occupies left hypochondriac and epigastric 

 regions. 



Orifices : cardiac, above, communicating with the oeso- 

 phagus; pyloric, at the right extremity, passing into the 

 duodenum. 



Dimensions : 10 to 12 inches long ; 4 to 5 inches in diameter 

 at widest part. 



Relations : 



Left or cardiac end : fixed by oesophagus and gastro-phrenic 

 ligament to diaphragm, lying beneath the yth left costal 

 cartilage, i inch from sternum : it is connected with the 

 spleen by the gastro-splenic omentum. 



Right or pyloric end .- reaches gall-bladder, touching under 

 part of quadrate lobe of liver ; is very movable, when stomach 

 is empty is in mid-line on line midway between upper border of 

 sternum and upper border of pubis, over ist lumbar vertebra. 



Anterior surface, which also looks upwards, is in contact 

 with, from left to right, diaphragm, abdominal parietes (epi- 

 gastric region), under surface of liver. 



Posterior surface is separated from diaphragm, aorta, pan- 

 creas, spleen, left kidney, and supra-renal, transverse meso- 

 colon and colon, by lesser sac of peritoneum. 



Superior border : attached to liver by small omentum. 



Inferior border : gives attachment to great omentum. 



ARTERIES. Coronary and pyloric run along lesser curvature ; 

 right and left gastro-epiploic, along inferior or greater curvature ; 

 vasa brevia, from the splenic to fundus. 



NERVES. Right pneumogastric, to posterior surface; left 

 [neumogastric, to anterior surface ; sympathetic, from the solar 

 plexus to both surfaces. 



THE SMALL INTESTINES. 



THE DUODENUM. 



Length : 8 to 10 inches. 



Shape : horse-shoe, with the convexity to the right side, the 

 concavity enclosing the head of the pancreas. 



Position : occupies epigastric and umbilical regions. 



Has no mesentery, and is only partially invested by peri- 

 toneum. 



Divided into three parts. 



Relations : 



1st part : 2 inches long ; directed from pylorus upwards, 

 backwards, and to the right, reaching the neck of the gall- 



