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Excitable Nerve cells that transmit electrical signals. |
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the brain and the Spinal cord which occupy the dorsal body cavity. |
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- Outside the CNS
- Contsists mainly of the nerves that extend from the brain and spinal cord
- has 2 functional sub divisions
- Sensory/ afferent division
- Motor/efferent div.also has 2 sub. div.
- Somatic and Autonomic
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Clusters of cell bodies in the CNS |
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Lie along the nerves in the PNS |
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Bundles of neuron processes when in the CNS |
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Bundles of Neuron Processes When in the PNS |
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- Types of Neuron processes
- Diffe from each other in the structure and function of their Plasma membranes
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