Baroreflex
Also known asBaroreceptor Reflex · Baroreceptor Reflexes · Reflexes, Baroreceptor · Reflex, Baroreceptor · Baroreflexes
Definition
A response by the BARORECEPTORS to increased BLOOD PRESSURE. Increased pressure stretches BLOOD VESSELS which activates the baroreceptors in the vessel walls. The net response of the CENTRAL NERVOUS SYSTEM is a reduction of central sympathetic outflow. This reduces blood pressure both by decreasing peripheral VASCULAR RESISTANCE and by lowering CARDIAC OUTPUT. Because the baroreceptors are tonically active, the baroreflex can compensate rapidly for both increases and decreases in blood pressure.
MeSH classification
- G09.330.380.057
- G11.561.731.063
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Arterial Pressure
The blood pressure in the ARTERIES. It is commonly measured with a SPHYGMOMANOMETER on the upper arm which represents the arterial pressure …
Atrial Pressure
The pressure within the CARDIAC ATRIUM. It can be measured directly by using a pressure catheter (see HEART CATHETERIZATION). It can be also…
Blood Viscosity
The internal resistance of the BLOOD to shear forces. The in vitro measure of whole blood viscosity is of limited clinical utility because i…
Blood Volume
Volume of circulating BLOOD. It is the sum of the PLASMA VOLUME and ERYTHROCYTE VOLUME.
Capillary Resistance
The vascular resistance to the flow of BLOOD through the CAPILLARIES portions of the peripheral vascular bed.
Cardiac Volume
The volume of the HEART, usually relating to the volume of BLOOD contained within it at various periods of the cardiac cycle. The amount of …
Source: NIH MeSH 2026 (D017704) — National Library of Medicine, public domain. View official MeSH record ↗