Muscle cells possess receptors on their cell surface for the neurotransmitter ACh. These receptors enable the muscle to respond to a nerve impulse. In myasthenia gravis, helper T cells cause a clone of B cells to differentiate into plasma cells and release antibodies that attach to and obstruct these ACh receptors. As a result, the muscles fail to be stimulated and start to deteriorate. A short-term treatment for myasthenia gravis is to inject monoclonal antibodies into the blood. What is the target of these monoclonal antibodies?
- Aantibodies that bind to ACh receptors
- Bmuscle cell surface ACh receptors
- Cplasma cells secreting anti-ACh receptor antibodies
- Dthe stimulating neurotransmitter ACh