Rochelle developed multiple sclerosis while she was 27. After eight years she has lost a good portion of her ability to control her skeletal muscles. She's in the clinic today as well as is asking you to define why this has happened. Be sure to review with her the normal physiology of nerve impulses, before you define the changes that occurred with her multiple sclerosis. Define why after 8 years of multiple sclerosis she is losing her ability to control her skeletal muscles? Explain what is the normal physiology of nerve impulses?