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Rajni

In physiology, feed-forward control is exemplified by the normal anticipatory regulation of heartbeat in advance of actual physical exertion. Feed-forward control can be likened to learned anticipatory responses to known cues. Feedback regulation of the heartbeat provides further adaptiveness to the running eventualities of physical exertion. A pure feed-forward system is distinct from a homeostatic control system, which has the function of keeping the internal environment of the body steady or constant or in a prolonged steady state of readiness, and relies mainly on feedback, indeed on negative feedback, in addition to the feedforward elements of the system.