342 



FOOD AND DIGESTION 



Structure of the Stomach. The stomach is composed of four coats, 

 called, respectively, the external or peritoneal, the muscular, the submucous, 



FIG. 253. The Human Stomach and the Vagus Distribution. R. L., Recurrent 

 laryngeal; Ca2, inferior cervical cardiac branch; Ca^, Ca^, cardiac branches of vagus; 

 A. P. PL, P. P. PI., anterior and posterior. pulmonary plexuses; Oes. PL, esophageal plexus; 

 Cast. R. and!,., gastric branches of vagus, right and left; Coe, PL, coeliac plexus; Hep. pi., 

 hepatic plexus. 



and the mucous coat. Blood vessels, lymphatics, and nerves are distributed 

 in and between them. 



