carried by the blood, but do allow oxygen, water and glucose to enter .
the brain.
THE DIFFERENT SECTIONS OF THE BRAIN.
The brain is divided into three main sections. The area at .
the front of the brain is the largest. Most of it is known as the .
cerebrum. It controls all of the movements that you have to think .
about, thought and memory. The cerebrum is split in two different .
sections, the right half and the left half. .
The outer layer of the cerebrum is called the cortex. It is .
mainly made up of cell bodies of neurons called grey matter. Most .
of the work the brain does is done in the cortex. It is very wrinkled .
and has many folds. The wrinkles and folds give the cortex a large .
surface area, even though it is squeezed up to fit in the skull. .
The extra surface area gives the cerebrum more area to work. .
Inside the cortex, the cerebrum is largely made up of white matter. .
White matter is tissue made only of nerve fibres. .
The middle region is deep inside the brain. It's chief .
purpose is to connect the front and the back of the brain together. .
It acts as a "switchboard", keeping the parts of your brain in touch .
with each other. .
The back area of the brain is divided into three different .
parts. The pons is a band of nerve fibres which link the back of the .
brain to the middle. The cerebellum sees to it that all the parts of .
your body work as a team. It also makes sure you keep your balance. .
them to the two brain hemispheres. The thalamus is located in between .
above the lower brain and under the two hemispheres.
THE DIFFERENT SECTIONS OF THE BRAIN:.
Most of the above mentioned parts of the brain were produced .
early in evolution but the higher mammals especially humans went on to .
produce a sort of "thinking cap" on top of these parts. This .
"thinking cap" was divided into two different parts, the left .
hemisphere and the right hemisphere. .
If the left side of your brain is more developed like most .
