Autoregulation of Cerebral Blood
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The brain maintains relatively constant
The brain maintains relatively constant cerebral perfusion over a wide range of blood pressure, through a mechanism of local control called "autoregulation". The mechanism is through a sphincter-like vasoconstriction or dilatation of the pre-capillary arteriole feeding the capillary bed. This mechanism increases perfusion (rCBF) in response to falling pH and/or rising pCO2.
11 سال پیش
در تاریخ 1392/10/17 منتشر شده
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