26 PROFESSOR D. J. CUNNINGHAM 



greater curvature about the middle of the ' body ' * of the stomach. It should be 

 noted that no corresponding constriction occurs on the lesser curvature. The two 

 parts of the stomach which are thus mapped off from each other present a marked 

 contrast. The portion to the left of the constriction constitutes a more or less 

 globular sac with relatively thin walls ; the part to the right has assumed the form of 

 a long tube, intestiniform in appearance, with thick, firmly contracted walls. These 

 sharply defined subdivisions may be distinguished by the terms cardiac sac and 

 gastric tube. 



The cardiac sac, immediately below the cardiac opening, has a girth of 255 mm., 

 and along the greater curvature, from the entrance of the oesophagus to the constric- 

 tion, it measures 235 mm. The gastric tube, on the other hand, at its junction with 

 the cardiac sac, has a girth of 88 mm., and at the incisura angularis a girth of 125 mm. 

 The length of the tube, measured along the greater curvature, is 215 mm. If we take 

 the entire length of the greater curvature as being represented by the number 100, the 

 index of the cardiac sac portion is 52 "4, and of the gastric tube 47 "6. 



The gastric tube is composed of two very nearly equal parts, viz. a portion formed 

 by the body of the stomach and another which corresponds to the pyloric portion of 

 the stomach. A bend in the tube, with a concurrent incisura angularis in the lesser 

 curvature, indicates this subdivision, and opposite the incisura the greater curvature is 

 pouched out into a distinct camera princeps, which gives rise to the increased girth at 

 this point. The pyloric canal is expanded, and is thus not clearly marked off from the 

 pyloric vestibule ; but the duodeno-pyloric constriction is distinct and the sphincteric 

 ring is firmly contracted. The part of the gastric tube which is formed by the body of 

 the stomach is the most strongly contracted portion of the organ. It shows a gradual 

 diminution in girth as it is traced to the right, and at its junction with the pyloric part 

 its diameter is only slightly greater than that of the duodeno-pyloric constriction. 



When the abdominal cavity of the subject in which this stomach was found was 

 opened, only a small portion of the front wall of the cardiac sac immediately adjoining 

 the constriction in the greater curvature was visible, below and to the right of the 

 seventh and eighth costal cartilages of the left side. The remainder of the cardiac sac 

 lay under shelter of the left lobe of the liver, the diaphragm, and the left thoracic wall. 

 The tubular portion of the stomach was completely hidden from view by the transverse 

 colon, which was placed in front of it, as so frequently happens in cases where the 

 stomach is partially or completely empty. On pulling down the transverse colon, the 



* Tin; term "body of the stomach" (Magenkorper) is used here in the sense in which it is employed by His. 

 He divides the stomach into a fundus, a body, and a pyloric part (22, pp. 347, 351, 352). The fundus and the 

 body are separated by an imaginary line drawn horizontally around the organ from the cardiac opening to a point on 

 the greater curvature directly opposite. To this encircling line His applies the term of zona cardiaca. The pyloric 

 gment is marked off from the body of the stomach on the side of the lesser curvature by the incisura angularis ; 

 nu the greater curvature side there is, as a rule, no sharp indication of such a subdivision. To render the division 

 more precise, M tjller draws a line from the incisura angularis to the most prominent point of the ' coude de Pestomac ' 

 or camera princeps; His, on the other hand, includes the whole of this bulging on the greater curvature in the 

 pyloric part of the stomach — a subdivision which we prefer. 



