If you order your custom term paper from our custom writing service you will receive a perfectly written assignment on The Human Brain. What we need from you is to provide us with your detailed paper instructions for our experienced writers to follow all of your specific writing requirements. Specify your order details, state the exact number of pages required and our custom writing professionals will deliver the best quality The Human Brain paper right on time.
Our staff of freelance writers includes over 120 experts proficient in The Human Brain, therefore you can rest assured that your assignment will be handled by only top rated specialists. Order your The Human Brain paper at affordable prices!
The Human Brain
The human body is divided into many different parts called organs.
All of the parts are controlled by an organ called the brain, which is
located in the head. The brain weighs about .75 pounds, and has a
Write my Essay on The Human Brain for me
whitish-pink appearance. The brain is made up of many cells, and is the
control centre of the body. The brain flashes messages out to all the
other parts of the body. The messages travel in very fine threads called
nerves. The nerves and the brain make up a system somewhat like telephone
poles carrying wires across the city. This is called the nervous system.
The nerves in the body dont just send messages from the brain to
the organs, but also send messages from the eyes, ears, skin and other
organs back to your brain. Some nerves are linked directly to the brain.
Others have to reach the brain through a sort of power line down the back,
called the spinal cord. The brain and spinal cord make up the central
nervous system.
The brain doesnt just control your organs, but also can think and
remember. That part of the brain is called the mind.
PROTECTING THE BRAIN
Twenty-eight bones make up the skull. Eight of these bones are
interlocking plates. These plates form the cranium. The cranium provides
maximum protection with minimum weight, the ideal combination. The other
twenty bones make up the face, jaw and other parts of the skull.
Another way the brain keeps it self 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
called choroid plexuses produce a protective cerebrospinal 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.
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. Its 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.
The medulla is low down at the back of your head. It links the
brain to the top of the spinal cord. The medulla controls the way your
heart pumps blood through your body. It also looks after your breathing
and helps you digest food.
THE DIFFERENT PARTS OF THE BRAIN
THE BRAINSTEM
The brainstem is one of the oldest parts of the brain. It
controls such functions as breathing, blood pressure, swallowing and heart
rate.
THE HYPOTHALMUS
This part of the brain is located directly above the brain stem.
The hypothalmus controls basic drives like hunger and sex and as well as
our response to threat and danger. The hypothalmus also controls the
pituitary.
THE PITUITARY
The pituitary produces hormones such as testosterone that
circulate through out the body.
THE THALAMUS
The thalamus is like a relay area; it receives messages from lower
brain areas such as the brainstem and hypothalmus and sends 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
peoples are, you are right handed. On the other hand if the right side
of your brain is more developed, then you will be left handed. The right
side of your brain is more artistic and emotional while the left side of
your brain is your common sense and practical side, such as figuring out
math and logic problems.
THE CEREBELLUM
One of the most important part of the Human brain is the
cerebellum. The cerebellum is involved with the more complex functions of
the brain and sometimes is even referred to as the brain within the
brain. The cerebellum acts as a control and coordination centre for
movement.
The cerebellum carries small programs that have been previously
learned. For example, how to write, move, run and jump are all previously
learned activities that the brain recorded and can playback when needed.
Every time you practice, the brain rewrites the program and makes it
better.
You may have heard the saying practice makes perfect. Well this
saying is not entirely true; another way of practising is just to
imagine what you wish to do. Since the cerebellum cant actually feel, it
will think that you are doing what your imagining and respond by rewriting
its previous program and carrying out any other actions needed for that
function. This is one why to explain wet dreams.
THE CEREBRAL CORTEX
The cerebral cortex makes up the top of the two hemispheres of the
brain. The cortex is a sheet of greyish matter which produces our
thoughts, language and plans. It also controls our sensations and
voluntary movements, stores our memories and gives us the ability to
imagine, in short its what makes humans, humans.
IN THE FUTURE
Today many experiments are being conducted that may be break
throughs for the future. For instance brain grafting is one procedure
that may be used in the future. Brain grafting is to transplant a very
thin layer of brain skin from one person to another. This would result in
control of parkinsons disease and other seizure related diseases.
Another radical idea that has already been successfully been tried
on rhesus monkeys is, brain transplants. 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, would not
have the same memories or the same abilities that the host body had had.
The last idea of the future that we will list is called
artificial hearing and seeing. Artificial seeing is achieved by
planting sixty-four 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 persons 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
somewhat see.
Artificial hearing is much more complicated then artificial seeing.
First a electrodes must be planted in the brain. Then through a
microphone a computer produces electrical pulses that are then sent to the
electrodes in the brain.
But as of yet these procedures are not practical first because of
the size of the computer, it cannot be taken out of the laboratory second
the cost of the package and third the risks involved.
CONCLUSION
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 vast and distant skys to the microorganisms that
exist today, the brain has never ceased to amaze us and probably never
will.
BIBLIOGRAPHY
1. The Brain and Nervous System by Lambert, Mark copyright Macmillan
Education, 188
. The Brain and Nervous System by Parker, Steve copyright Franklin Watts,
10
. Encyclopedia Britannica by Britannica, Encyclopedia Inc. copyright
Encyclopedia Britannica Inc., 186
4. The Incredible Machine by Geographic, National Society copyright
Geographic, National Society, 1
GLOSSARY artificial hearing When a person is able to hear but not
naturally.
artificial seeing When a person is able to see but not naturally.
blood brain barrier A set of special capillaries that are only found in
brain. There purpose is to filter the blood so only oxygen, glucose and
water are able to enter the brain. Unfortuantly they dont prevent
narcotics from entering the brain.
brain An organ that is pinkish-white in appearance and is located in the
skull. This organ controls almost everything that the body does.
brain grafting Brain grafting is the process of taking a thin layer of
brain skin from the donor and moving to new host.
brainstem This is what the brain had used to be early evolution, but now
it only controls our basic functions such as breathing and heart rate.
capillaries Tiny blood vessels.
cells What all living thing are built from.
central nervous system This the brain and spinal cord put together.
Also see brain, spinal cord.
cerebellum This part of the brain makes sure that all of your body works
together. It also keeps your balance.
cerebral cortex This is one of the most important parts of the brain.
It also is produces our thoughts, stores our memories, and plans.
cerebrospinal fluid This what the brain floats in.
cerebrum The cerebrum is split in to two different sides. Left and
right. It is located at the front of the head.
choroid plexuses These special blood vessels are what produce the
cerebrospinal fluid.
cortex This is the outer layer of the cerebrum.
cranium This is the part of the skull that holds the brain.
diseases Illnesses that can be terminal.
electrodes They are made out metal and emit electricity, usually very
little.
glucose This is a combination of sugar and water.
grey matter Mainly made from the cell bodies of neurons.
hemisphere These are the two different part of the cerebrum. Almost all
of the brains work is done there.
hormones Chemicals that can change the chemical make up of your physical
body.
hypothalmus This part of the brain is located above the brainstem. It
controls basic drives such as hunger and sex.
medulla The medulla is almost right behind the brainstem. It helps you
to digest your food.
mind Not just the brain but the actual consciousness that we have.
nerves Pathways that the brain uses to send messages to and from
different parts of the body.
nervous system The whole system of nerves that attach to the spinal cord.
organs Important part of the body. The brain, heart and lungs are
examples of organs.
Parkinsons Disease This disease causes the victim to have seizures.
pituitary The pituitary produces hormones.
pons A band of nerve fibre that connect the back the brain to the middle.
skull The skull is made up of twenty-eight bones. It is located above
the spinal cord. It also contains the brain.
spinal cord This cord goes down your back. Almost all nerves in the
body are connected to the spinal cord.
thalamus The thalamus a sort of relay room. It gets messages from the
lower brain area and sends them to the higher brain.
transplant To transplant is to take something from one person and put it
into another person.
white matter White matter is tissue made from nerve fibres.
Please note that this sample paper on The Human Brain is for your review only. In order to eliminate any of the plagiarism issues, it is highly recommended that you do not use it for you own writing purposes. In case you experience difficulties with writing a well structured and accurately composed paper on The Human Brain, we are here to assist you. Your cheap custom college paper on The Human Brain will be written from scratch, so you do not have to worry about its originality.
Order your authentic assignment and you will be amazed at how easy it is to complete a quality custom paper within the shortest time possible!
Comments
Post a Comment