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The Central Nervous System and the Peripheral Nervous System or CNS and PNS are the two main divisions of the nervous system. The CNS consists of the spinal cord and brain and gathers info. in the spinal cord and up to the brain for interpretation and the brain sends out a signal as a response. The PNS is made up of sensory receptors and motor effectors. ( It is basically all the parts besides the brain and spinal cord.) The PNS also has cranial nerves and spinal nerves.

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11y ago
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15y ago

1.Central nervous system (brain, spinal cord and everthing in between)

2.Peripheral nervous system (everything else, further divided into somatic nervous system and autonomous nervous system, which is itself divided into the sympathetic, parasympathetic, and enteric nervous systems)

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16y ago

The Autonomic Nervous System and Central nervous system.

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10y ago

The Central Nervous System (CNS), and the Peripheral Nervous System (PNS).

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12y ago

central and peripheral =)

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13y ago

central and peripheral nervous systems

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Q: What are the two principal divisions in the nervous system?
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