124 DEGLUTITION. 



pharyng^al product is evidently destined to favour degluti- 

 tion. 



The O3sopha<ras, or gullet, is a musculo-membranous tube, 

 with a f unnei-naped aperture, formed by the pharynx, and 

 terminating at the cardiac opening on the left side of the 

 stomach. In ruminants, it enters the paunch, and forms 

 there (as seen at Fig. 66), a canal, with two prominent lips 



Ffe.68. 



or pillars, communicating with the first and second stomach, 

 and by an opening to the right, with the third gastric 

 cavity. 



In all animals the oesophagus may be divided into the 

 neck portion, or cervical, and into the chest portion, or 

 thoracic divisions. The first may be traced along the left 



