Resistance of large arteries appears to be greater in the cerebral circulation than in other
vascular beds. Large arteries contribute importantly to total cerebral vascular resistance and …

The goal of this study was to examine effects of arginine vasopressin and angiotensin on
cerebral microvascular pressure and segmental vascular resistance. We measured pressure …

Previous studies have demonstrated a significant pressure gradient from carotid artery to
pial or middle cerebral arteries. This pressure gradient suggests that large cerebral arteries …

Several new concepts have emerged recently regarding the effects of chronic hypertension
on cerebral blood vessels. First, hypertrophy of large cerebral arteries in chronic …

Cerebral blood vessels undergo profound alterations in function and structure during
chronic hypertension. The pressure-flow relationship in cerebral circulation is altered in …

The responses of cerebral precapillary vessels to changes in arterial blood pressure were
studied in anesthetized cats equipped with cranial windows for the direct observation of the …

The responsiveness of the microvasculature and arteries during cerebral cortical
autoregulation in rats was determined from measurements of microvascular pressures and …

The purpose of this study was to determine directly segmental cerebral vascular resistance
during sympathetic stimulation and changes in arterial pressure. We measured pressure in …

The purpose of this study was to determine the microvascular characteristics that cause
cerebral cortical blood flow autoregulation to shift to a higher range of arterial pressures …

The autoregulatory responses of cerebral blood vessels during changes in perfusion
pressure are mediated by several mechanisms. Metabolic mechanisms appear to …