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The nervous system (NS) ­ divides into the peripheral nervous system (PNS) and the central nervous system (CNS)

THE CNS consists of the brain & spinal cord and is concerned with maintaining life functions and psychological processes

Brain ­ 1. The CEREBRUM (left and right hemisphere) 2. The CEREBELLUM…

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Neurotransmitters can have different effects when they BIND to the receptor on the postsynaptic neuron

The TOTAL effect determines whether an impulse is produced in the next neuron

Excitatory neurotransmitters cause an `excitatory postsynaptic potential' ­ LIKELY TO FIRE e.g NORADRENALINE

Inhibitory neurotransmitters cause an `inhibitory…


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