How are involuntary actions and reflex actions different from each other?

The involuntary actions include the skeletal muscle movement those are under regulation of the autonomic division (ANS) of the peripheral nervous system which consists of motor fibres that relay nerve impulses from CNS (Central Nervous System) to cardiac and smooth muscles and glands, thereby controls the functioning of internal organs, without our conscious control. Reflex action is an automatic, quick and innate response to particular stimuli that is mediated by a reflex arc. A simple reflex arc consists of sensory receptors, afferent neuron, spinal cord, efferent neuron and effector organ. Therefore, involuntary actions are unconscious responses produced by brain while reflex actions do not involve the brain for information processing.