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Experimental evidences of Gastric Secretions

Russian Scientist Ivan Pavlov made a series of experiments called Classical Conditioning. In these experiments he found various phases of gastric secretions and their mechanisms and their control. He found that food need not enter the mouth of the dog for the gastric juice to produce or for salivation to occur. This experiment verifies the vagal control of gastric secretion in in which the gastric juice is released from the glands by mere sight and smell of food. The experiments used by him include Sham feeding, Bell Dog Experiment and the famous Pavlov's Pouch.