Myasthenia gravis is a neuromuscular disease that causes muscle weakness and fatigue. It is an autoimmune disorder that affects the communication between nerves and muscles, leading to difficulty in contraction of muscles. However, it does not affect the heart muscles.

Explanation:

Neuromuscular disease: Myasthenia gravis is a neuromuscular disease that affects the communication between nerves and muscles. It is caused by an autoimmune response that attacks the receptors on the muscle cells, preventing nerve impulses from reaching the muscles.

Respiratory muscles: In severe cases of myasthenia gravis, the muscles that control breathing may become weak, leading to respiratory failure. This can cause paralysis of the respiratory muscles, making it difficult to breathe.

Autoimmune disorder: Myasthenia gravis is an autoimmune disorder, where the body's immune system attacks its own tissues. In this case, the immune system attacks the receptors on the muscle cells, preventing nerve impulses from reaching the muscles.

Heart muscles: Unlike other muscles in the body, heart muscles are not affected by myasthenia gravis. This is because the heart muscle has a different type of receptor that is not affected by the autoimmune response. However, some medications used to treat myasthenia gravis can affect the heart and may cause side effects such as arrhythmia.

Conclusion:

Myasthenia gravis is a neuromuscular disease that causes muscle weakness and fatigue. It is an autoimmune disorder that affects the communication between nerves and muscles, leading to difficulty in contraction of muscles. It does not affect the heart muscles, but medications used to treat myasthenia gravis may cause side effects on the heart.

Myasthenia gravis is an auto immune disease.It leads to paralysis of skeletal muscles