Step 1: Understand autoimmune disorders.
An autoimmune disorder is a condition in which the body’s immune system mistakenly attacks its own healthy cells and tissues instead of protecting them from pathogens.
Step 2: Identify the disorder affecting skeletal muscles.
One well-known autoimmune disease that affects skeletal muscles in humans is Myasthenia gravis.
Step 3: Explain how it affects the muscles.
In Myasthenia gravis, the immune system produces antibodies that attack and block the acetylcholine receptors at the neuromuscular junction. This disrupts the transmission of nerve impulses to the muscles, leading to muscle weakness and fatigue.
Final Answer:
The autoimmune disorder that affects skeletal muscles in humans is Myasthenia gravis.