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It will be seen that unless fresh air in sufficient quantities reaches the lungs, the foul stream of venous blood cannot be purified, and consequently not only is the body thus robbed of nourishment, but the waste products which should have been destroyed are returned to the circulation and poison the system, and death ensues. Impure air acts in the same way, only in a lessened degree.
Elephantiasis from Lymphatic or Venous Obstruction. Of this the best-known example is tropical elephantiasis (E.
There never yet has been produced, and I do not believe there can be produced, a tittle of evidence to show that, before his time, any one had the slightest suspicion that a single drop of blood, starting in the left ventricle of the heart, passes through the whole arterial system, comes back through the venous system, goes through the lungs, and comes back to the place whence it started.
Kennedy, who had been casting his eye carefully about taking in the whole laboratory, seemed delighted to find the slides. He opened the box and gingerly took out some of the little oblong pieces of glass, on each of which he dropped a couple of minute drops of blood from the arterial spurts and the venous pools on the floor.
The city rapidly uses men up; families run out, man becomes sophisticated and feeble. A fresh stream of humanity is always setting from the country into the city; a stream not so fresh flows back again into the country, a stream for the most part of jaded and pale humanity. It is arterial blood when it flows in, and venous blood when it comes back.
Apparently his view was that there was a sort of ebb and flow in both systems and yet, he uses language just such as we would, speaking of the venous system as ". . . a conduit full of blood with a multitude of canals large and small running out from it and distributing blood to all parts of the body."
So distinctly and with such regularity do these movements take place that an operator by watching the movements of the uterus can tell the effect that the anesthetic is having on the patient's breathing. These so-called respiratory movements play a very important role in the circulation of the uterus, and in the return of the venous blood to the heart.
Circulation of the Blood. Nothing is more important for the health or healing of any organ or part of the body than a good supply of arterial blood. Venous blood, collected by the veins after it has done its work all over the body, or blood stagnating in congested organs, is useless for growth and healing.
No, I don't think I should drink that whisky if I were you, you want to keep yourself cool and quiet." So Major Selby departed in his cab and I went home, and, having nothing better to do, turned up my notes on various cases of venous thrombosis, or blood-clot in the veins, which I had treated at one time or another.
The venous blood goes to the heart, which drives it into the gills, from whence it passes forward of its own accord, as arterial blood into the organs, under the remote influence of the original impetus from the heart, the newly-arrived blood incessantly driving the other before it into the vessels of circulation.
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