Cerebral vascular resistance changes in response to cerebrospinal fluid pressure

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Abstract
Changes in cerebrospinal fluid pressure to 400 mm H2O do not alter cerebral blood flow. In response to this pressure, postcapillary resistance increases with a decrease of pre-capillary resistance. If cerebrospinal fluid pressure can be considered to be brain tissue pressure, this effect is a form of autoregulation subserving a homeostatic function.