DIGESTION AND ABSORPTION 



309 



The stomach is a pear-shaped organ lying just beneath the 

 diaphragm. The oesophagus opens into its larger or cardiac 



Fig. 159. Diagram of thorax and abdomen showing location of heart, 

 viscera and lungs. C, clavicle; D, diaphragm; 10, first dorsal vertebra; 

 F, femur; H, humerus; Ht, heart; I, ilium; L, liver; L. I., large 

 intestine; L. L., left lung; P. pelvis; R. L., right lung; S. I., small 

 intestine; S, scapula; St., sternum. (After Deaver.) 



end which is at the left side. The walls are muscular, and 

 distend as food enters. It is covered on the outside with 



