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Nervous system
A focused and complex network, the nervous system is vital to our well being. This network connects your entire body and to the world around you.
The nervous system manages your senses, voluntary an involuntary functions and your ability to think.
The nervous system is divided into two networks: central or CNS (the brain and spinal cord) and the peripheral or PNS (cells that control your involuntary and voluntary actions). It is supported and protected by connective tissue.
The cells of this network have several critical jobs. Cells in these organs produce neurotransmitters, which initiate and sustain electric impulses. This allows your brain to talk to organs far and near. These messages travel very fast and provide only brief control.
There are many illness and conditions that can affect the nervous system. These include:- Head and spinal cord injuries
- Problems with blood flow
- Birth defects
- Degenerative diseases like Parkinson's disease and Multiple sclerosis
- Infections in the brain or sinuses
- Alcohol/drug withdrawal or overuse
- A brain tumor.
- Organ failure.
Cancers of this network can be found in the gray matter of the brain, on the membrane covering the brain, and in the spinal cord. Endocrine glands located in the brain may also be a source of tumors. The skull is a common site for secondary tumors that have migrated from their place of origin.
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