What is the cause of symptoms of people with myasthenia gravis?
antibodies block receptor molecules on the cell surface membrane of muscle cells
2 )
it is an autoimmune disease where self-antigens attack antibodies
3 )
the destruction of T-lymphocytes, which have receptors complementary to self-antigens
4 )
the loss of cell surface membrane receptors in nerve cells found in the spinal cord
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