baroreception

Baroreception refers to the physiological process involving baroreceptors, which are sensory nerve endings primarily found in the walls of large arteries like the aorta. These receptors are sensitive to changes in blood pressure.1

When blood pressure or the volume of blood returning to the heart increases, baroreceptors in the heart's right atrium detect this change. They transmit this information via the vagus nerve to the central nervous system. This triggers a response that can increase heart rate and the strength of heart muscle contraction, a process known as the Bainbridge reflex. Conversely, the baroreceptor reflex can also lead to a decrease in heart rate and dilation of peripheral blood vessels, ultimately lowering blood pressure.23