File:Interstate medical journal (1917) (14760728776).jpg

Identifier: interstatemedica2419unse (find matches)
Title: Interstate medical journal
Year: 1917 (1910s)
Authors:
Subjects: Medicine
Publisher: St. Louis, : Interstate Medical Journal
Contributing Library: The College of Physicians of Philadelphia Historical Medical Library
Digitizing Sponsor: The College of Physicians of Philadelphia and the National Endowment for the Humanities

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in a normal person)as well as from other normal persons by using the Rehfus tube. In our fistula man we find that the average rate of secretion ofappetite gastric juice is 31/2 cubic centimeters per minute. Themaximum rate of secretion that we have observed during mastica-tion of the meal is 11 cubic centimeters per minute; the lowest iy2cubic centimeters per minute. Chewing the food without appetitecauses no secretion of gastric juice whatever. In man, seeing,smelling or thinking of food, when hungry has a very slight in-fluence on the continuous secretion of gastric juice. In this respectman appears to differ from dogs, as studied by Pavlov. In man, theall important factor for the appetite secretion is the tasting or thechewing of the palatable food. The secretion starts practicallywithout any latent period as soon as the person starts to chew, andit begins to slow up practically at once when the mouth is free fromfood, so that 15 to 20 minutes after chewing the food the appetite 8
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0 5 10 15 20 25 30 35 40 45 50 55 Chewi- g food. Typical curve of secretion of gastric juice of Mr. V. on mastication of palatablefood for twenty minutes. The gastric juice was collected at five-minuteintervals. The rise in the secretion rate during the last five minutes ofmastication is due to chewing the dessert (fruit). secretion factor is at an end. A typical curve of appetite secretionof gastric juice in man is reproduced in Fig. L This appetite gas-tric juice in normal persons is of a very constant composition. Thetotal acidity is practically 1/2 percent, or the same as in a normaldog. I should like to point out in this connection that the acidity of thispure gastric juice from the stomach of normal persons is equal toto the highest degree of acidity of the gastric juice so far recordedin the literature in cases of socalled clinical hyperacidity. Im-pressed with the view of Pavlov that the loss of the appetite gastricjuice would result in some degree of gastric indigestion, I wa

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