DISEASES OF POULTRY 



67 



Fig. 14.— Digestiv-e App.\ratcs of the Chicken. 

 In this fig-ure all of the head has been removed except the lower iaw 

 which has been turned sidewise to show the ton;rue and the openings to 

 the trachea and (E^ophagrus. The neck with the exception of the oesoph- 

 ag-us, the breast bone, the heart and the superficial muscles have also 

 been removed. "■^.v/ 



1, tontrue; 2, pharynx, showinir opening to larynx; 3, upper portion of 

 OESophafrus; 4,crop; s, lower portion of cesophag^us; 6, succentric ventricle- 

 /,g-izzard; 8, origin of the duodenum: 9, first branch of duodenal flexure- 

 10 second branch of the same: ll.oriirinof the floating portion of small 

 intes'ine: 12, small intestine: 13. free extremities of the caeca: 14 inser- 

 tion of these two organs into the intestinal tube; 15, rectum: 16. cloaca- 

 17, anus; 18, mesentery: 10, left lobe of the liver; 20, right lobe -^1 trail 



