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We have employed this method with satisfactory results. The treatment of the complications of varix has already been considered. In the description of angiomas we have followed the teaching of the late John Duncan. Tumours of blood vessels may be divided, according to the nature of the vessels of which they are composed, into the capillary, the venous, and the arterial angiomas.
The power necessary to do this in so short a time must be considerable, and has been variously estimated by different physiologists. The muscular coats of the arterial system are then brought into action by the stimulus of distention, and propel the blood to the mouths, or through the convolutions, which precede the secretory apertures of the various glands and capillaries.
And secondly, if the quantity of sensorial power be lessened, and the stimulus be increased to a certain degree, as in giving opium in nervous fevers, the arterial contractions may be performed more frequently than natural, yet with less strength.
They think that when the venous pressure is increased only by large doses of epinephrin, pituitary extract and alcohol, the effect is due to failure of the heart, although it may be due to an increase of carbon dioxid in the blood, in other words, to asphyxia. Arterial hypertension may be divided into stages.
The man in whom the few remaining germs are confined largely to the skin is fortunate. The unfortunates are those who, with the spirochetes in their artery walls, heart muscle, brain, and spinal cord, develop the destructive arterial and nervous changes which lead to the crippling of life at its root and premature death.
When an artery is wounded a firm hæmatoma may form, with an expansile pulsation and a palpable thrill whether such a hæmatoma remains circumscribed or becomes diffuse depends upon the density or laxity of the tissues around it. In course of time a traumatic arterial aneurysm may develop from such a hæmatoma.
The biography of a supreme poet is the history of his kind. He transmits himself by pure vital impression. His remembrance is committed, not to any separable faculty, but to a memory identical with the total being of men. If you would learn his story, listen to the sprites that ride on crimson steeds along the arterial highways, singing of man's destiny as they go.
#Artificial Hyperæmia.# When such direct means as the above are impracticable, much can be done to aid the tissues in their struggle by improving the condition of the circulation in the inflamed area, so as to ensure that a plentiful supply of fresh arterial blood reaches it. The beneficial effects of hot fomentations and poultices depend on their causing a dilatation of the vessels, and so inducing a hyperæmia in the affected area. It has been shown experimentally that repeated, short applications of moist heat (not exceeding 106°
The lights never cease with its lappets and bellows to cool and refresh it, in acknowledgment of which good the heart, through the arterial vein, imparts unto it the choicest of its blood.
In blood, however venous, there is in health always some oxygen; and in even the brightest arterial blood there is actually more carbonic acid than oxygen." T. H. Huxley. "Consumption is a disease which can be taken from others, and is not simply caused by colds. A cold may make it easier to take the disease. It is usually caused by germs which enter the body with the air breathed.
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