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Jordan Carter

on 27 April 2010

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Transcript of Nervous

The Brain Nerve Cells Spinal Cord The column of nerve cells attatched to the brain extending downnward is the spinal cord. It carries messages and signals to and from your brain and all parts of your body. It keeps your brain informed of changes in your body and in your environment. Your spinal cord is protected by the vertabrae and discs.
Vertabrae: There are 33 vertebrae that make up the bone structure of the spinal column, with the last four stuck together to make the tailbone.
Disc: Each vertebrae is separated by a soft bone called a disc, which acts as a cushion and a seal at the same time.
The mass of nerve tissue that act as the control center of the body is called the brain. The human brain weighs about 3 lbs. Your brain creates controls and ideas, thinking, reasoning, movement and emotion.
The brain has 3 major parts:
The cerebrum: largest part of the brain and controls the ability to memorize, think, and learn.
The Cerebellum: the part of the brain that controls and coordinates muscle activity.
The brain stem: the part of the brain that controls functions of the internal organs. THE NERVOUS SYSTEM The nervous system is composed of cells called neurons. A neuron is a nerve cell that is the structural and functional unit of the nervous system. A neuron consists of a cell body, an axon, and dentries.
Cell body: is the main body of the neuron.
Axon: is an elongated fiber that carries impulses away from the cell body to the dentrites of another neuron.
Dentrites: branching fibers that receive impulses and carry them to the cell body. The nervous system is a very complex system
in the body. It is divided into two main systems,
the central nervous system (CNS) and the
peripheral nervous system. The spinal cord and
the brain make up the CNS. Its main job is to get
the information from the body and send out
instructions. The peripheral nervous system is
made up of all of the nerves and the wiring. This
system sends the messages from the brain to the
rest of the body. System Diseases 1. Alzheimer Disease
2. Broca Aphasia
3. Cerebello-Olivary Degeneration of Holmes
4. Choroid Plexus Papilloma
5. Hunington Disease
6. Kluvery-Bucy Syndrome
7. Locked-In Syndrome
8. Multiple Sclerosis
9. Parkinson Disease
10. Parinaud Syndrome
11. Pituitary Adenoma
12. Tourette Syndrome
13. Wallenberg Syndrome
14. Weber Syndrome
15. Wernicke Aphasia
16. Korsakoff Syndrome
17. Wilson Disease
The brain and nervous system form an
intricate network of electrical signals that
are responsible for coordinating muscles,
the senses, speech, memories, thought and
Several diseases that directly affect the nervous
system have a genetic component: some are due
to a mutation in a single gene, others are
providing to have a more complex mode of
inheritance. There are no cures for many of
the nervous system diseases, however
a nutritional diet that includes a lot of
fiber is often recommended for people
with Parkinson's disease. Although protein
may interfere with some of the medications
used to treat PD, this is rarely an issue
particularly in mild to moderate levels of PD.
Protein is an important part of a well rounded
Most Common Disease:
Parkinson's Introduction to Diseases Ways to keep your
Nervous System healthy. One of the best ways to keep your Nervous System healthy is to spend a minimum of 15 minutes per day writing on paper as neatly as you can.

Writing with pen on paper is far more effective at exercising your nervous system than writing with a keyboard on a computer, as typing on a keyboard doesn't require as much fine motor control as writing on paper. An alternative to writing on paper is to draw on paper, as drawing with precision also requires intensive use of all of the major components of your conscious motor and sensory apparatuses. The 2 parts of the Nervous System: The Central Nervous System: consists of the brain and spinal cord.
The Peripheral Nervous System: is made up of nerves that branch out from the central nervous system to muscles, skin, internal organs and glads. Anatomy of the Nervous Brain If you think of the brain as a central computer that controls all bodily functions, then the nervous system is like a network that relays messages back and forth from the brain to different parts of the body. It does this via the spinal cord, which runs from the brain down through the back and contains threadlike nerves that branch out to every organ and body part. When a message comes into the brain
from anywhere in the body, then brain
tells the body tells the body how to react.
For example, if you accidentally touch a
hot stove, the nerves in your skin shoot a
message of pain to your brain. The brain
then sends a message back telling the
muscles in your hand to pull away. Luckily,
this neurological relay race takes a lot less
time than it just took to read about it.
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