A text-book of physiology for medical students and physicians . LIMENTARY CANAL. 709 makes an angle, therefore, with the body of the stomach, and differsfrom the latter in its musculature, the macroscopical and microscop-ical characteristics of its mucous membrane, and in its functionalimportance. Some writers divide the antrum further into apyloric vestibule, forming the larger part of the antrum, and apyloric canal, consisting of the narrower tube-like portion whichconnects with the duodenum. The pyloric canal is short, about3 cm., and is more marked as a separate structure in the stomachof
A text-book of physiology for medical students and physicians . LIMENTARY CANAL. 709 makes an angle, therefore, with the body of the stomach, and differsfrom the latter in its musculature, the macroscopical and microscop-ical characteristics of its mucous membrane, and in its functionalimportance. Some writers divide the antrum further into apyloric vestibule, forming the larger part of the antrum, and apyloric canal, consisting of the narrower tube-like portion whichconnects with the duodenum. The pyloric canal is short, about3 cm., and is more marked as a separate structure in the stomachof young children. The rest of the stomach falls into two sub-divisions, the fundus and the corpus or body. The fundus is theblind, rounded end of the stomach to the left of the cardia, or, ina vertical position of the stomach, the portion that lies above ahorizontal plane passing through the cardia; the portion betweenthe fundus and the pylorus is the body of the stomach or the Duodenum Pylorus Pyloric partof-stomador antrum pylori Position oftransverse 6an>. ntermediate orprepyloric region. Fig. 283.—Schematic figure to show the different parts of the stomach.—(After Retzivx.) intermediate or prepyloric region. This latter region shows inmany animals a characteristic structure in its secreting glands,and it is in this portion that the hydrochloric acid of the gastric-juice is mainly secreted. The Musculature of the Stomach.—The musculature of thestomach is usually divided into three layers,—a longitudinal, anoblique, and a circular coat. The longitudinal coat is continuousat the cardia with the longitudinal fibers of the esophagus; it spreadsout from this point along the length of the stomach, forming a layerof varying thickness; along the curvatures the layer is strongerthan on the front and posterior surfaces, while at the pyloric end itincreases considerably in thickness, and passes over the pylorus tobe continued directly into the longitudinal coat of the duodenum
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Keywords: ., bookautho, bookcentury1900, bookdecade1910, booksubjectphysiology
