. the left side of a hen carried out in such a way as to show the principal organs. Beginning at the anterior end we see, when the skin is removed from the bird, two tubes lying along the ventral aspect of the neck. These are the esophagus (1) and the windpipe or trachea (2). In the region where the neck joins the trunk there is a sac-like dilata- tion of the esophagus, the crop (3). Proceeding backwards from the crop the ali- mentary tube passes through the thoracic cavity and as it enters the abdominal cavity widens out into the jjro- ventriculus (4), or glan- dular stomach. This opens direc


. the left side of a hen carried out in such a way as to show the principal organs. Beginning at the anterior end we see, when the skin is removed from the bird, two tubes lying along the ventral aspect of the neck. These are the esophagus (1) and the windpipe or trachea (2). In the region where the neck joins the trunk there is a sac-like dilata- tion of the esophagus, the crop (3). Proceeding backwards from the crop the ali- mentary tube passes through the thoracic cavity and as it enters the abdominal cavity widens out into the jjro- ventriculus (4), or glan- dular stomach. This opens directly into the gizzard (5) in which the mechanical breaking up and grinding of the food material is carried on. After leaving the giz- zard the food passes into the intestine. The first portion of the intestine,


Size: 1176px × 4250px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, booksubjectpoultry, bookyear1915