ARTERIOGRAPHY

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Abstract
The chief function of arteries is the transportation of blood. As far as the arteries are concerned, this function is dependent entirely on the size of and the presence or absence of obstruction of the lumens. The adequacy respectively of the entire arterial circulation of an extremity, and of its component parts, requires. separate consideration. The situation is analogous to that which exists in the heart; the myocardium may function normally, even if the valves are functionally insufficient. In the extremities the arterial circulation as a whole may be adequate, even when some of its component parts are badly diseased. There are many methods for determining the sufficiency of the entire arterial circulation to extremities, such as studies of the response of the temperature of the skin to artificially induced fever, spinal anesthesia, and block of peripheral nerves, analysis of symptoms, effect of posture on the color of the skin

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