If
at a given time increases blood pressure above certain levels, the aortic baroreceptors and carotid sinus are distended and send afferent signals through the vagus nerve and Hering (which joins the glossopharyngeal), respectively. The signals enter the dorsal respiratory group of the medulla and from there send signals to two nerve centers:
a) inhibits the vasoconstrictor center, producing vasodilation and
b) Enables the vagal center, which decreases heart rate and strength systolic.
In both cases, the action restores the normal condition of lowering blood pressure.
This occurs in reverse if there is a drop in blood pressure.
a) inhibits the vasoconstrictor center, producing vasodilation and
b) Enables the vagal center, which decreases heart rate and strength systolic.
In both cases, the action restores the normal condition of lowering blood pressure.
This occurs in reverse if there is a drop in blood pressure.
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