Another important role played by the monosynaptic stretch reflex is control of posture. To stand, we must keep center of gravity above our feet, or we will fall. As we stand, we tend to oscillate back and forth and from side a side. Our vestibular sacs and our visual system play an role in the maintenance of posture. However, are aided by the activity of the monosynaptic For example, consider what happens when a person begins to lean forward. The large calf muscle (gastrocnemius) is stretched, and this stretching elicits compensatory muscular contraction that pushes the toes down, thus restoring upright posture(See Figure 8.6.)