It has long been known for sure that the sight of tasty food makes a hungry man's mouth water; also lack of appetite has always been regarded as an undesirable phenomenon, from which one might conclude that appetite is essentially linked with the process of digestion. Ivan Pavlov appetiteconcludedigestion share on social
Our experiments not only proved the existence of a nervous apparatus in the above-mentioned glands, but also disclosed some facts clearly showing the participation of these nerves in normal activity. Ivan Pavlov activityapparatusdisclose Change image and share on social
Physiology has, at last, gained control over the nerves which stimulate the gastric glands and the pancreas. Ivan Pavlov controlgaingastric Change image and share on social
Finally, as the digestive canal is a complex system, a series of separate chemical laboratories, I cut the connections between them in order to investigate the course of phenomena in each particular laboratory; thus I resolved the digestive canal into several separate parts. Ivan Pavlov canalchemicalcomplex share on social
The physiologist who succeeds in penetrating deeper and deeper into the digestive canal becomes convinced that it consists of a number of chemical laboratories equipped with various mechanical devices. Ivan Pavlov canalchemicalconsist share on social
As was to be expected, the discovery of the nervous apparatus of the salivary glands immediately impelled physiologists to seek a similar apparatus in other glands lying deeper in the digestive canal. Ivan Pavlov apparatuscanaldeep Change image and share on social
It goes without saying that the desire to accomplish the task with more confidence, to avoid wasting time and labour, and to spare our experimental animals as much as possible, made us strictly observe all the precautions taken by surgeons in respect to their patients. Ivan Pavlov accomplishanimalavoid share on social
It is clear to all that the animal organism is a highly complex system consisting of an almost infinite series of parts connected both with one another and, as a total complex, with the surrounding world, with which it is in a state of equilibrium. Ivan Pavlov animalclearcomplex share on social
In the case of the stomach, however, the nerves of the glandular cells were always severed when constructing an artificially isolated pouch and this, naturally, affected the normal work of the stomach. Ivan Pavlov affectartificiallycase share on social
The gastric laboratory uses its protein ferment under an acid reaction. Ivan Pavlov acidfermentgastric Change image and share on social
