Define reflex arc and what is the role of reflex arc
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A reflex arc is a neural pathway that controls a reflex. In vertebrates, most sensory neurons do not pass directly into the brain, but synapse in the spinal cord. This allows for faster reflex actions to occur by activating spinal motor neurons without the delay of routing signals through the brain.
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the part that and impulse takes in a reflex action is called a reflex arc.
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