ABSTRACT
The essential task of the cardiovascular blood pressure control system is to deliver suf-ciently high blood pressure to maintain various functions of the body and its organs. If the blood pressure is too low or too high, blood ¬ow cannot be maintained. For example, when a person stands up, blood tends to stay in the lower body due to gravity and the blood pressure regulatory system must respond quickly in order to maintain sufcient blood ¬ow to the brain. If response of the hemodynamic system is not quick, the person would faint almost immediately. The body must also adapt to a wide range of physical workloads in which muscles must receive a sufcient supply of oxygen-rich blood. Thus, a blood pressure control system that can maintain stable blood pressure in the face of rapidly changing demands is a fundamental requirement for our health.
