Rating Newest Oldest. Best Answer: Natural gas is piped to your home as a vapour while propane is stored as a liquid in portable containers. You are still burning vapour not liquid with a propane appliance. When you draw off the vapour and burn it, the liquid in the tank boils to create more vapour. It also expands 270 times as it changes from a liquid to a vapour, so that is why a small tank lasts so long!
It is made up of the central nervous system, containing the spinal cord the brain, and the peripheral nervous system, containing the nerves, the sensory organs as well as other elements. A nervous system disorder is a malfunction that causes abnormalities in the nerves, spinal cord, or brain.
The demyelinating disorders of the CNS include: 1  Myelinoclastic disorders, in which myelin is attacked by external substances. 2  standard Multiple sclerosis, Devic's disease and other disorders with immune system involvement called inflammatory demyelinating diseases.rganophosphates, a class of chemicals which are the active ingredients in commercial insecticides such as sheep dip, weed-killers, and flea treatment preparations for pets, etc., will also demyelinate nerves. Neuroleptics can also cause demyelination.