摘要: THERE are few vascular beds with such unique anatomic and physiological characteristics as the renal circulation. Although our knowledge has advanced greatly in past decade, it seems that we may need a man imagination vision of Harvey to explain multiplicity unresolved issues this area. It appears likely alterations hemodynamics play role regulation sodium water balance maintenance arterial blood pressure. In addition, level flow be an important factor various pathophysiological states. We summarize certain aspects REGULATION OF RENAL BLOOD FLOW Approximately 20% cardiac output perfuses circulation, extraordinary amount when one considers total weight both kidneys is only 300 g. The controlled by