Summary
The authors studied the chemoreceptions of the human stomach and small intestine removed during surgery.
The impulse activity in the peripheral section of the afferent nerve was recorded in conditions of perfusion of these organs. Administration into the vessels and application to the mucosa of these organs, of various chemical substances (solutions of glucose, peptone, calcium chloride, caffeine, and alcohol), promoted the appearance of the previously absent impulsation, or enhanced it. The impulses, from 5–10μv to 100μv and over, were either individual with a definite rhythm, or grouped in the form of an uninterrupted series. There were no marked differences in the impulsation resulting from the action of various substances. The greatest activity was recorded with the introduction of glucose into the vessels and with the application of caffeine upon the mucous membrane. The data presented point to the possibility of using certain human internal organs, removed during surgical operations, for the electrophysiological study of different types of reception.
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Literature Cited
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