what is a reflex action? describe the step involved in a reflex action ???
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A reflex action is an unconscious, involuntary and instantaneous movement or response due to a stimuli. ... Receptor detects a stimulus(change in the environment)------>Sensory neurone sends signal to relay neuron---->Motor neuron sends signal to effector---->Effector produces the desired response.
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Reflex action : A quick ,sudden,immediate response of body to certain stimuli that involves spinal cord .
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