In 1894, Ivan Pavlov summarized the physiological state of knowledge about digestion in this way: The digestive canal is in its task a complex chemical factory. The raw material passes through a ...

Ivan Pavlov was born in a small village in central Russia. His family hoped that he would become a priest, and he went to a theological seminary. After reading Charles Darwin, he found that he ...

While researching digestion in dogs, Ivan Pavlov noticed that the dogs began to drool as soon as they saw the white coats of the people who fed them; before they could even see or smell their food.