define reflex action
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reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus. A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain.
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Reflex action is defined as an unconscious and involuntary response of effectors to a stimulus. Two examples of the condition reflex action are: i)The salivation to the sight or smell of the food. ii) Looking left and right while crossing the road.
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