Dawn over the Moskva river

To this Chapter, the authors proceed with special excitement. In it, we will acquaint the reader with the second our teacher as distinguished scholars as the first.
Labour childhood in a peasant family, in a poor village, Tver province, near river dipper. Two classes of parish schools. Even as a child he felt an irresistible passion for knowledge. Mikhail Georgievich recalls the joy with which I read first real word in credit and debit book local handcarts: milk.
Then institution with the strange name of Higher initial spiritual school. Pedagogical Institute. Postgraduate studies at the I. L. Kane, Ph.D. in the field of neuromuscular physiology. Participation in the great Patriotic war. In the fifties Mikhail Georgievich Udalov - associate Professor of the Department of physiology of man and animals of the Moscow state University.
On the shore of the Rybinsk reservoir, the "capital" of the Darwin reserve - the village of Borok from year to year passed internship graduates. Today, many of them well-known physiologists.
Supervised practice Mikhail Georgievich, or, as it is for some reason called many generations of students, Mikhail Egorovich.
- Many students, " recalled our teacher,- and look, someone will be lost. In the evenings, before going to sleep, I counted them all.
As one of the wards imprudent went to sleep on the side, and Mikhail Georgievich spent the whole night on the oars, searching for the missing, and returned in the morning, exhausted, did not utter a word, and all learned about this only after forty years.
Indomitable hunter, he didn't know a miss. One day he took a pot shot at random in three ducks, flying too high; their order is not violated, hunter gave up-they say, and shot without any hope. But, flying a kilometer, one bird stone fell into the water and was duly delivered one of us ashore. A pellet was sitting in the heart. That year was rich in finds. The life of the expedition was connected with physiology.
Killed the snake. Her heart for a long time fought, he was isolated by Straub (as - remember? - did Otto Levi), and it worked, fitted on the cannula. In the belly of this viviparous snake found several galuchat, but they were what is called clinically dead: for their heart was not beating. It was then that Mikhail Georgievich shook students experiment, truly amazing: when heart galuchat (too isolated) closer to the heart of the mother, resumed their beating.
Urgently facing new and new experiments and found that the rapprochement even hearts snakes and frogs - hearts, working with different frequency, leads to the gradual establishment of a new, common to both heart rhythm, to the full synchronization of the beating. If now again to zoom out one heart from another, the pace of their work gradually diverge and cease to depend on each other.
Later, after returning to the Department, it has been confirmed as accurate laboratory experiments and served as the basis for new views on the work of a cardiac pacemaker - the rhythm is determined not by one rhythm automatic cells with the highest frequency, and is the result of integrating the activities of all automatic pacemaker cells structure. "Symptoms of a heart automaticity of vertebrates is not the cellular and tissue problem," says Udalov. This view is reflected in many of his works and works of his students.
Then it was discovered that the vessels wings herons have a very special structure. Artery end of the wing passes within the corresponding Vienna and Vienna with its valves enclosed in hard connective case. It became clear that the arterial pulsation is a pump that pushes the blood from a vein wing to the heart. All life is the object of physiological study, from snails to fish and fish to the higher vertebrates - such was the attitude of Mikhail Georgievich to nature.

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