Myasthenia gravis is a neuromuscular disorder. Neuromuscular disorders involve the muscles and the nerves that control them.
Neuromusclar disorder - myasthenia gravis
Causes, incidence, and risk factors
Myasthenia gravis causes weakness of the voluntary (skeletal) muscles. These are the muscles that create movement and are normally under your conscious control. The involuntary muscles, on the other hand, are not under conscious control (such as the muscles of your heart and many other internal organs).
In myasthenia gravis, weakness occurs because the nerve that activates a particular muscle does a poor job of stimulating that muscle. This problem occurs because immune cells (which normally attack foreign invaders) target and attack the body's own healthy cells. This is known as an autoimmune response. This autoimmune response produces
The cause of
Myasthenia gravis can affect people at any age. It is most common in young women and older men.