According to the reading about Myasthenia gravis which is

Last updated: 8/8/2022

According to the reading about Myasthenia gravis which is thought to be due to an immune system abnormality. What does the immune system destroy, block or alter? 1) the receptors on the muscle cell at the neuromuscular junction. 2) the nerve cells that ontrol skeletal muscle 3) the sarcoplasmic reticulum 4) the thick (myosin) and thin (actin) myofilaments