Answer :
"Myasthenia gravis is a neuromuscular disease leading to fluctuating muscle weakness and fatigability. It is an autoimmune disorder, in which weakness is caused by circulating antibodies that block acetylcholine receptors at the postsynaptic neuromuscular junction, inhibiting the stimulating effect of the neurotransmitter acetylcholine.
It is caused by a problem with the signals sent between the nerves and the muscles. It's an autoimmune condition, which means it's the result of the immune system mistakenly attacking a healthy part of the body.
A myasthenic crisis is a medical emergency that occurs when the muscles that control breathing weaken to the point where individuals require a ventilator to help them breathe. It may be triggered by infection, stress, surgery, or an adverse reaction to medication."
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