Biology › Section N · Nervous and sensory systems › Topic N.4
The peripheral nervous system and disorders
The CNS is the power plant; the peripheral nervous system is the wiring — and when the wiring or the plant fails, the disorders that follow read like a map of what was lost.
In this topic
- The wires from the power plant
- The autonomic relay: two synapses
- Fight or flight versus rest and digest
- Worked example: A Tyrannosaurus rex enters the room
- The sensory-somatic nervous system
- Alzheimer's: forgetting, neuron by neuron
- Parkinson's: the slow shuffle
- When wiring goes wrong: development and mood
- Epilepsy and stroke
- Worked example: The neurologist reads a broken system
- Common mistakes to avoid
- Key takeaways
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