Myasthenia Gravis                                                   Myasthenia Gravis is an autoimmune disorder characterized by a neuromuscular weakness.  Acetycholine, a neurotransmitter, is unable to bind its receptor due to receptor destruction by autoantibodies.    Image taken from: The Children's Health Encyclopedia  http://www.childrenscentralcal.org/HEALTHE/P02461/P02433/Pages/P02434.aspx    Symptoms:     Muscle weakness    drooping eyelids    blurred vision    slurred speech    difficulty breathing Testing:     Tensilon test, single fiber EMG, acetycholine receptor Antibody ID and Anti-MuSK antibody ID Treatment:     Anticholinesterase agents, corticosteroids, immunosuppressants, thymecytomy     Credit: Tiffany Clark