In multiple sclerosis, the protective coating on nerve fibers (myelin) is damaged and may eventually be destroyed. Depending on where the nerve damage occurs, MS can affect vision, sensation, coordination, movement, and bladder and bowel control. Multiple sclerosis (MS) is a potentially disabling disease of the brain and spinal cord (central nervous system). In MS, the immune system attacks the protective sheath (myelin) that covers nerve fibers and causes communication problems between your brain and the rest of your body. Eventually, the disease can cause the nerves themselves to deteriorate or become permanently damaged.
NEXT PAGENEXT. Internal combustion means just what it says: that fuel is burned inside the engine. In a car engine, gasoline is burned inside the engine, which ignites the fuel and releases energy that moves the car. There are also other methods of internal combustion, such as diesel engines and gas turbine engines. Internal combustion is an efficient system that requires a relatively small engine to create motion.
The internal combustion engine is a form of machinery in which the combustion of fuel and, in this case, a fossil fuel takes place with an oxidizer i.e. air. This process takes place inside the protective walls of a combustion chamber.