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===About the Central Nervous System===
: The '''central nervous system''' is also referred to as the '''CNS'''.
: The '''CNS''' has [[Relay Neuron|relay neurons]] which pass an [[Impulse (Biology)|impulse]] from the [[Sensory Neuron|sensory neurons]] to the [[Motor Neuron|motor neurons]].: [[Impulse (Biology)|SignalsImpulses]] are sent via the [[nerve]]s to the '''CNS''' where they are processed and a [[Impulse (Biology)|signalimpulse]] is then sent back down the [[nerve]]s to an [[effector]]s such as a [[muscle]] and or [[gland]].