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Английский язык для медиковThe liver in its detoxicating functions and manifold metabolic activities may well be ransidered the most important gland of the body. The normal position of the empty human stomach is not hori zontal, as used to be thought before the development of rentgenology. This method of examination has revealed the stomach to be either somewhat Jshaped of comparable in outline to a reversed L. The majority of normal stomachs are Jshaped. In the Jshaped type the pylorus lies at a higher level than the lowest part of the greater curvature and the body of the stomach is nearly verti cal. The stomach docs not empty itself by gravity, but through the contraction of its muscular wall like any other part of the diges tive tube, of which it is merely a segment. Gastric motility shows great individual variation; in some types of stomach the wave travels very rapidly, completing its journey in from 10 to 15 seconds. In others the wave takes 30 seconds or go to pass from its origin to the pylorus. The slow waves are the more common ...» |
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