[The effect of sinocarotid circulatory reflexes on the microcirculation of the kidney]

Sinocarotid baroreceptor control of renocortical and medullary blood flow was examined by hydrogen washout technique in unconscious rabbits. Direction and size of the local renal blood flow depend on the interaction of extravenal nerval influence, the actual blood pressure and the renal autoregulation. The data reveal an important neuroreflectory control of the renal blood flow. The renomedullary flow is not totally determined by the degree of systemic arterial blood pressure. Renal factors thus appear to participate very early and continuously in primary neurogenic forms of arterial hypertension.