The Nervous System:

All the nerves in the human body are connected by the nerves with the brain..The Nerves leave the brain along the spinal cord ecept the cranial nerves. 

A bunch of nerves except the cranial nerves leave the spinal cord in a solid bunch crossing a canal in the spine.

The Individual nerves connect through the muscles in the body branching of the spinal vertabrae running between the Individual nerves branch off from the spinal cord through the gaps between the spinal vertabrae to connect. This is how the nerves connect every part of the body. 

Two particular groups of nerves- the sympathetic and the parasympathetic-control such body functions as breathing, heartbeat, stomach activity, sweating, blood pressure, circulation of blood in the limbs and sexual functions

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The sympathetic nerves oppose the parasympathetic and so maintain the fine adjustment of these function. For instance, sympathetic nerves speed up heartbeats and parasympathetic slow them down, sympathetic nerves enlarge the eye pupils and parasympathetic make them smaller

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Each individual nerve is made up of a chain of nerve cells (neurones) with long branches that are produced by a sheath of myelin- Neurones (or nerve cells) are chained up with long sheaths od myelin which are like long branches. Myelin is a complex material if damaged can disrupt the workings of the human body in turn can cause nervous diseases like Multiple sclerosis. The branches transmit messages from the brain to the body as fast as 328 ft (100 m,) a second. 

The sensory nerves send signals about such physical sensations as pain, touch, heat and cold; and the motor nerves then instruct the body to react in an appropriate manner-for example, by sweating when its hot and shivering when its cold.

In general, the left hand side of the brain controls the right side of the body and vice versa. 

Disorders of the nervous system

The motor nerves control the muscles. Changes in these can cause so many problems a increase in motor activity may affect the nervous system such examples of these are epilepsy, meningitis and the changes caused by a head injury. These can cause convulsions which in turn may cause a decrease in motor activity such as unconciousness. 

The Changes in the motor nerves, which control the muscles, can cause so many of the disorders that affect the nervous system. Increase in motor activity, for example, due to causes such as epilepsy, head injury or meningitis, can lead t convulsions and a decrease unconciousness or even death.

The intensity of these and other disorders depends upon the patients physical and mental condition and upon the root cause.

Two of the most common disorders are faintin, in which the blood supply to the brain is a abruptly, if briefly reduced-and tenison headache or migraine. Changes in temperature or sudden stress can bring them all of theses symptoms described on.

A stabbing in the face pain is a nother commonly experienced disorder this is caused neuralgia Another frequently encountered disorder is neuralgia, it extends along the length of a nerve.

Other disorers include:multiple sclerosis, a chronic disease affecting areas of the brain and spinal cord;

Parkingsons disease, in which the muscles twitcch:and spinal bifida,a congenital defect of the spine.

High Risk groups

There are no speciic groups of people, who, because of their work or lifestyles run a risk of developing a disorder of the nervous system. Howeve, those who have already suffered from such an illness should look out for signs that the condition may recur and report them to the doctor.

Epilepsy, muscular distrophy and som foms of ataxia tend run in certain families.

Main symptoms of nervous disorder

• Collapse,
• Conulsions,
• Headache / Migraine
• Tremor, 
• Unconsciousness,
• Vertigo
  
  Emergencies
  
  

• An epileptic seizure in someone aged 30 or over, who is not known to suffer from 

epilepsy, may indicate a brain tumour.

• Severe headache, stiff and painful neck or back, vomiting and high temperature-which may be a sign of meningitis.
• Dizzy spells, vertigo or unconsciousnes when tilting the neck can indicate stroke,transient ischaemic attackor vertebrobasilar insufficiency, in which the flow of blood to the base of the brain is impeded. 
• There may also be double vision or weakness of a limb.

If You experience anyone of these symptoms please tell a doctor each individual case needs different treatments whether combined or by themselves. Complementary measures such as hemp oil, eating and drinking healthily and keeping calm is essential for staving off these symptoms. The doctor will know the best course of action for these measures. Read the instructions on the pharmaceuticals in case they effect any other malady you may have. Nervous problems can be very complicated to treat, the doctor will know the best course of action.