Figure 4From: Cardiac baroreflex is already blunted in eight weeks old spontaneously hypertensive rats Recordings from one control WKY and one SHR illustrating reflex tachycardia (top) in response to blood pressure decreases. Infusions were given in bolus. MAP, mean arterial pressure; PAP, pulsatile arterial pressure; HR, heart rate; SNP: sodium nitroprusside.Back to article page