Answer: Brain and spinal cord
Explanation:
The central nervous system is made of two parts:
I) Brain - it is the most highly specialized organ. It is protected by the skull. And it is made up of three main parts
- Fore brain
- Mid brain
- Hind brain
II) Spinal cord - it is made up of a soft tissue which runs from the medulla oblongata to the tail region. It is enveloped within three membranes
- the meninges which support and protect it
- a narrow canal
- the spinal canal runs down the centre of the cord.
