The Americana; a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc., of the world . h this fact that bread will cause a secretion whenchewed and swallowed, and not when placed di-rectly in the stomach through the fistula, may beinterpreted (as by Pawlow and Peter liorisofT)as proving the secretion of a gastric juice imderpsychic influence; but — as will he shown pres-ently— it may be due to a special body in thasaliva that stimulates gastric secretion. STOMACH Further revelations from Pawlows labora- it. The
The Americana; a universal reference library, comprising the arts and sciences, literature, history, biography, geography, commerce, etc., of the world . h this fact that bread will cause a secretion whenchewed and swallowed, and not when placed di-rectly in the stomach through the fistula, may beinterpreted (as by Pawlow and Peter liorisofT)as proving the secretion of a gastric juice imderpsychic influence; but — as will he shown pres-ently— it may be due to a special body in thasaliva that stimulates gastric secretion. STOMACH Further revelations from Pawlows labora- it. The name of salivary secretin has beentory disclose very important relations between proposed for this body, which appears also to the various classes of food, permitting the con-clusion that they may mutually advance or in-terfere with the digestion of their various con-stituents in the gastric chyme. For instance,starch paste does not by itself promote gastricsecretion, but when mixed with meat it wasfound to accelerate the action of the gastric juice,increasing its digestive power. Furthermore, itwas demonstrated that the stomach is capable of. DORSAL \1E\V.(Dotted area shows location of Stomach.) a. Lungs. d. Left kidney. g. Hepatic flexure. b. Spleen. e. Descending colon. /i. Right kidney. c. Splenic flexure. f. Complementary space. i. Ascending colon be a normal stimulant for the gastric glands. The human stomach accomplishes its workby the means of three essential functions, secre-tion, absorption, and peristalsis (this term refersto the movements of the stomach). The secre-tion of the gastric glands owes its digestivepower to hydrochloric acid and four quantity of hydrochloric acid amounts totwo parts in the i,ooo of gastric juice. Theferments are pepsin,which acts mainly on theproteid constituents offood like meat and egg,rennin or chymosin,which acts principally up-on milk, precipitating thecasein ; lipase, which is afat-digesting ferment;and the new gas
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