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Ivan Pavlov QUOTES / QUOTATIONS
Appetite, craving for food, is a constant and powerful stimulator of the gastric glands.
Quotation of Ivan Pavlov
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.
Quotation of Ivan Pavlov
As we have seen, bread, and especially dry bread, evokes secretion of considerably larger quantities of saliva than meat.
Quotation of Ivan Pavlov
But man has still another powerful resource: natural science with its strictly objective methods.
Quotation of Ivan Pavlov
Don't become a mere recorder of facts, but try to penetrate the mystery of their origin.
Quotation of Ivan Pavlov
Edible substances evoke the secretion of thick, concentrated saliva. Why? The answer, obviously, is that this enables the mass of food to pass smoothly through the tube leading from the mouth into the stomach.
Quotation of Ivan Pavlov
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.
Quotation of Ivan Pavlov
From the described experiment it is clear that the mere act of eating, the food even not reaching the stomach, determines the stimulation of the gastric glands.
Quotation of Ivan Pavlov
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.
Quotation of Ivan Pavlov
In this way we often had to perform very minute operations, sometimes several of them on one and the same animal.
Quotation of Ivan Pavlov
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.
Quotation of Ivan Pavlov
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.
Quotation of Ivan Pavlov
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.
Quotation of Ivan Pavlov
It is not accidental that all phenomena of human life are dominated by the search for daily bread - the oldest link connecting all living things, man included, with the surrounding nature.
Quotation of Ivan Pavlov
Long before us it was established that the work of the salivary glands is regulated by a complex nervous apparatus.
Quotation of Ivan Pavlov
Mechanical influences are completely ineffective with regard to the gastric glands.
Quotation of Ivan Pavlov
Only by observing this condition would the results of our work be regarded as fully conclusive and as having elucidated the normal course of the phenomena.
Quotation of Ivan Pavlov
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.
Quotation of Ivan Pavlov
Our success was mainly due to the fact that we stimulated the nerves of animals that easily stood on their own feet and were not subjected to any painful stimulus either during or immediately before stimulation of their nerves.
Quotation of Ivan Pavlov
Perfect as the wing of a bird may be, it will never enable the bird to fly if unsupported by the air. Facts are the air of science. Without them a man of science can never rise.
Quotation of Ivan Pavlov
Physiology has, at last, gained control over the nerves which stimulate the gastric glands and the pancreas.
Quotation of Ivan Pavlov
Precise knowledge of what happens to the food entering the organism must be the subject of ideal physiology, the physiology of the future.
Quotation of Ivan Pavlov
So the stimulation effected by the act of eating reaches the gastric glands by means of the nerve fibres that are contained in the vagus nerves.
Quotation of Ivan Pavlov
Thanks to our present surgical methods in physiology we can demonstrate at any time almost all phenomena of digestion without the loss of even a single drop of blood, without a single scream from the animal undergoing the experiment.
Quotation of Ivan Pavlov
The digestive canal represents a tube passing through the entire organism and communicating with the external world, i.e. as it were the external surface of the body, but turned inwards and thus hidden in the organism.
Quotation of Ivan Pavlov
The first stage through which the food substances introduced from without must pass, is the digestive canal; the first vital action on these substances, or to be more exact and objective, their first participation in life, in its process, constitutes what we call the digestion.
Quotation of Ivan Pavlov
The gastric laboratory uses its protein ferment under an acid reaction.
Quotation of Ivan Pavlov
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.
Quotation of Ivan Pavlov
Thus, the purposeful relationship of phenomena is based on the specificity of the stimuli, that correspond to similarly specific reactions.
Quotation of Ivan Pavlov
When the dog is repeatedly teased with the sight of objects inducing salivary secretion from a distance, the reaction of the salivary glands grows weaker and weaker and finally drops to zero.
Quotation of Ivan Pavlov
While you are experimenting, do not remain content with the surface of things.
Quotation of Ivan Pavlov
While you are experimenting, do not remain content with the surface of things. Don't become a mere recorder of facts, but try to penetrate the mystery of their origin.
Quotation of Ivan Pavlov
With each meal, when edible substances find their way into the oral cavity, thick and viscous saliva containing much mucus flows out of these glands.
Quotation of Ivan Pavlov