FREE ESSAY ON THE BRAIN ESSAY

THE BRAIN ESSAY

The human body is divided into many different parts called organs. An organ called the
brain, is the center of the nervous system and it is the center of all voluntary and
involuntary activities. It is also responsible for other complexities such as thought,
language, and emotion. The brain weighs merely three pounds in an adult but it contains
thousands of millions of nerve cells that make up the nervous system. For years
scientists have been studying the enigmas of the brain and still today, there are many
aspects of the brain that remain a mystery. In order to comprehend the brain, it's
necessary to understand the protection it has from injuries. It's also imperative to
discover medical advances through tests and analysis to treat devastating neurological
diseases. 
Twenty-eight bones make up the skull. Eight of these bones are interlocking plates. These
plates form the cranium. The cranium provides maximum protection for the brain while the
other twenty bones make up the face. Another way the brain is kept safe is by keeping
itself in liquid. Nearly one fifth of the blood pumped by the heart is sent to the brain.
The brain then sends the blood through an intricate network of blood vessels to where the
blood is needed. Specialized blood vessels produce a protective fluid. This fluid is what
the brain literally floats in. A third protective measure taken by the brain is called
the blood brain barrier. This barrier consists of a network of unique capillaries. These
capillaries are filters for harmful chemicals carried by the blood, but do allow oxygen,
water, and glucose to enter the brain.
By understanding the nature in which the brain is kept, a person can assume that it is
the most important organ in the body. A person can then learn how to treat brain juries
and many neurological diseases. 
Today, many experiments are being conducted that may be medical advances for the future.
For instance, brain grafting is one procedure that may be used in the future. Brain
grafting is transplanting a very thin layer of brain skin from one person to another.
This would result in the treatment of Parkinson's disease and other seizure related
disorders. Another radical idea that has already been successfully been tried on rhesus
monkey's is, total body transplants. This would allow someone with total body cancer to
live with another body. However, the spine can't be reattached and scientists are
pondering ways on how to spark cell growth in the spinal column to grow back in the
broken area of the spine. The ethics and legal problems for such a transplant would
probably never let this operation be performed on humans. This is because the person
would not be the same. The last idea of the future is called artificial seeing.
Artificial seeing is achieved by planting small electrodes in front of the visual cortex
of the brain. The electrodes are connected to a small camera that is some where on the
person's ear. A computer is attached to the camera. The computer sends the images from
the camera directly to the implanted electrodes. They flash as the picture from the
camera, thus enabling the person to see. But as of yet this procedure is not practical
because of the size of the computer, and because of the cost of the package.
After all of the work and research that we have done it is very evident to us that the
brain is one of the most wondrous organs that humans could have. It guides us through
almost every second of our life. Even after exploring the world and the universe, the
brain has never ceased to amaze people, and probably never will.