The baroreceptor reflex is a fundamental physiological mechanism involved in maintaining stable blood pressure levels in the body. When blood pressure deviates from normal, baroreceptors, which are sensory receptors in the walls of blood vessels, detect these changes and send signals to the central nervous system. The central nervous system then processes this information and initiates corrective actions to bring blood pressure back to normal.
The type of mechanism utilized by the baroreceptor reflex is negative feedback. Negative feedback is a control mechanism that counteracts deviations from a set point, ensuring homeostasis. When blood pressure rises, the baroreceptor reflex works to lower it, and when it falls, the reflex acts to raise it. This opposing action helps stabilize blood pressure within a healthy range.
Thus, in the context of the options provided:
Negative feedback is the correct answer.