442 



ELEMENTAR Y ANA TOMY. 



[LESS. 



opens near the wide left end, or fundus of the stomach, 

 which part is called its cardiac part. The opposite end, or 

 pylorus, leads into the intestine the muscular fibres project- 

 ing, at the point of junction, so as to form a sort of valve. 



,'L 



rr-f 



FIG. 374. DIAGRAM OF THE ST.OMACH AND INTESTINES OF MAN. 

 a, vermiform appendix ; ac, ascending colon ; c, ctecum ; c', cardiac end of 

 stomach ; d, duodenum ; dc, descending colon ; k, rectum ; li, large intestine 

 (extending from c to k); a?, oasophagus ; py, pyloric end of stomach ; s, 

 stomach ; si, end of convoluted small intestines (which begin at d) ; tc, trans- 

 verse colon. 



9. On extending our view over Vertebrates generally, we 

 see that the oesophagus may be very short and wide, as in 

 most Fishes ; also that it may be exceedingly distensible, as 

 in Serpents. 



It may be furnished with long, hard, conical papillae, 

 directed backwards, as in devonians. 



It may have a special sac-like dilatation attached towards 

 its lower part, as in most Birds (Fig. 378, cp], where this por- 

 tion is called the crop, which may be double, as in Pigeons. 



