Final answer:
Myasthenia gravis is an autoimmune disease that affects the acetylcholine receptors in the neuromuscular junction, causing weakened muscle contraction capability. Autoantibodies block the receptors for acetylcholine on muscle cells, resulting in paralysis.
Step-by-step explanation:
Myasthenia gravis is an autoimmune disease in which the body's immune system produces autoantibodies that block acetylcholine receptors on muscle cells. This results in weakened muscle contraction capability and muscle weakness. The disease primarily affects the neuromuscular junction, impairing neuromuscular transmission.
In myasthenia gravis, autoantibodies bind to and block the receptors for acetylcholine on muscle cells, preventing normal muscle contraction. This can lead to symptoms such as drooping eyelids, difficulty swallowing and chewing, and overall muscle weakness and fatigue.
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