Myelin is an insulating layer that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances.
The purpose of the myelin sheath is to allow impulses to transmit quickly and efficiently along the nerve cells. If myelin is damaged, the impulses slow down. This can cause diseases such as
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Source: ADAM Encyclopedia
Central pontine myelinolysis is brain cell dysfunction caused by the destruction of the layer (myelin sheath) covering nerve cells in the brainstem... Read more »
Source: ADAM Encyclopedia
Charcot-Marie-Tooth disease is a group of inherited disorders that affect the peripheral nerves (those outside the brain and spine).Alternative... Read more »
Source: ADAM Encyclopedia
A nerve biopsy is the removal of a small piece of a nerve for examination.Alternative NamesBiopsy - nerveHow the test is performedThe sural nerve (in... Read more »
Source: ADAM Encyclopedia
Femoral nerve dysfunction is a loss of movement or sensation in the leg due to nerve damage.See also: Peripheral neuropathy; Mononeuropathy;... Read more »
Source: ADAM Encyclopedia
Tibial nerve dysfunction is a loss of movement or sensation in the lower leg, caused by damage to the tibial nerve.Alternative NamesNeuropathy -... Read more »