Structure and Function of
Human Brain
The
brain
is the most complicated
organ
in the
human body
As part of the
nervous system
, the brain coordinates all of the
body's functions
.
In adult humans, the brain is a
three-pound
gelatinous mass of fat and protein.
It consists of four main regions: the cerebrum,
cerebellum
, brainstem, and diencephalon, and each controls
specific functions
.
The
largest part
is the cerebrum, and it makes up more than 3/4 of the
brain's volume
.
It
consists of neurons
and nerve fibers that transmit information from neurons to the
brain and body
.