In the California State Legislature, Costa Mesa is in the 37th Senate District, represented by Republican John Moorlach, and in the 74th Assembly District, represented by Republican Matthew Harper.
Myasthenia gravis (MG) is a chronic, complex, autoimmune disorder in which antibodies destroy neuromuscular connections. This causes problems with communication between nerves and muscle, resulting in weakness of the skeletal muscles.
Things to remember. 1  Myasthenia gravis is an autoimmune disease that causes muscle weakness. 2  The symptoms are caused by the immune system interfering with the transmission of messages from the nervous system to the muscles. 3  There is no cure, but the symptoms can be managed.