cerebellum
The cerebellum is also sometimes called the "Little Brain" or the brain within the brain.
The medical term for it is"cerebellum" whereof the "big" brain is called "cerebrum" since the terms meaning "little brain and brain"it is referred by many as just that, though "brain" includes everything included the "little"brain so we have really just one brain and not two as many people think...
The brain
the amygdala
The CPU, or Central Processing Unit, is usually referred to as the "brain".
The cerebellum, also referred to as the smaller brain because it resembles the shape
The outer layer of the brain is the cortex and would be referred to as a cortical structure.
The hypothalamus.
Its a little bigger.
The Frontal Cortex
The brain
Nerves