# Central nervous system

> The central nervous system (CNS) is the body's control centre. It is made up of the brain and the spinal cord, which are protected by bone (the cranium and the vertebral column) and by membranes…

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## More in RESPONDING TO THE ENVIRONMENT (Humans)

- [Human nervous system](https://www.hlayiso.com/grade-12/life-sciences/notes/responding-to-the-environment-humans/human-nervous-system) — Previous section
- [Peripheral nervous system](https://www.hlayiso.com/grade-12/life-sciences/notes/responding-to-the-environment-humans/peripheral-nervous-system) — Next section
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