That is often what happens with an autoimmune disorder called masticatory muscle myositis (MMM) that affects the jaw muscles, causing pain and dysfunction. Swollen, painful masticatory (chewing) muscles and an inability to open the mouth (trismus) are clinical signs of the disorder.
Alan Roger Mulally (born August 4, 1945) is an American engineer, business executive, and former President and Chief Executive Officer of the Ford Motor Company. He retired from Ford Motor Company on July 1, 2014.
History of Ford Motor Company. Ford Motor Company is an American automaker and the world's fifth largest automaker based on worldwide vehicle sales. Based in Dearborn, Michigan, a suburb of Detroit, the automaker was founded by Henry Ford, on June 16, 1903.