ABDOMEN. 161 



borders, a base and an apex. Faces : external, convex ; 

 internal concave, it touches the large colon. Borders : 

 posterior thin and convex ; anterior concave, has a lon- 

 gitudinal fissure for the blood vessels and nerves, and 

 gives attachment to the great epiploon. The base rests 

 on the left kidney, and receives tlie suspensory liga- 

 ment. The apex is thin. Weight, thirty-two ounces. 

 Mode of attachments: The suspensory ligament and 

 the great epiploon. Structure : A serous membrane, 

 peritoneal covering ; a fibrous tunic, wliich from its in- 

 ternal surface send trabecules, dividing the organ into 

 numerous spaces, in which tlie splenic pulp is con- 

 tained, as well as the Malpighian bodies. Artery : 

 the splenic. Yeins : its satellites. Lymphatics : on the 

 external surface of the organ. Nerves : from the solar 

 plexus. 



Pancreas. — Abdominal salivary gland. — Situa 

 tion : sub-lumbar region, forward of kidneys, poste- 

 rior to liver and stomach. Weight : seventeen ounces. 

 Form : irregular and variable, flattened from above be- 

 low and traversed by the pancreatic ring. Faces : 

 superior is in connection with the aorta, posterior vena 

 cava, coeliac trunk, solar plexus, right kidney and su- 

 pra-renal capsule ; inferior is related to base of coecum 

 and tlie colon. Borders : anterior is in connection with 

 the duodenum and left sac of the stomach ; posterior 



