Myasthenia gravis (MG) is a neuromuscular disorder characterized by weakness and fatigability of skeletal muscles.
It is due to the decrease in the number of available acetylcholine receptors (AchRs) at neuromuscular junctions due to antibody mediated autoimmune attack.
Myasthenia gravis is caused by a defect in the transmission of nerve impulses to muscles. It occurs when normal communication between the nerve and muscle is interrupted at the neuromuscular.