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any of a large number of normal reflexes governing and regulating the functions of the viscera. Autonomic reflexes control such activities of the body as blood pressure, heart rate, peristalsis, sweating, and urination.
Any reflex involving the response of a visceral effector (cardiac muscle, smooth muscle, or gland). Such reflexes always involve two efferent neurons (preganglionic and postganglionic).
See also: reflex