explain me about whole process of reflex action
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Reflex actions. When a receptor is
stimulated, it sends a signal to the central nervous system, where the
brain co-ordinates the response. But sometimes a very quick response is
needed, one that does not need the involvement of the brain. ... The
animation below allows you to step through each stage of the reflex arc.
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A reflex, or 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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