Stomach of the Dog:

4. Interior Anatomy

The stomach can be divided into cardiac part, fundus, body, and pyloric part. The cardiac part is narrow and situated near the esophagus. The fundus is dome-shaped bulging above the level of the cardia to the left side. The body of the stomach is proximal and to the left of the angular incisure, which is a sharp bend on the lesser curvature. Distal to the body is the pyloric part that consists of a wider proximal portion, the pyloric antrum, and a narrower distal portion, the pyloric canal, which terminates at the sphincter, the pylorus.

The stomach of the dog is entirely lined with a glandular mucous membrane. The cardiac gland region is a narrow annular zone at the cardia. The region of the proper gastric glands can be divided into lighter proximal zone and a reddish brown distal zone. The pyloric gland region lined the distal part of the stomach.