coelom. coelom (sÄËlÉm) [ key ], fluid-filled body cavity, found in animals, which is lined by cells derived from mesoderm tissue in the embryo, and which provides for free, lubricated motion of the viscera.oelom. coelom (sÄËlÉm) [ key ], fluid-filled body cavity, found in animals, which is lined by cells derived from mesoderm tissue in the embryo, and which provides for free, lubricated motion of the viscera.
Facts You Should Know. ALS is not contagious. Although the life expectancy of a person with ALS averages about two to five years from the time of diagnosis, this disease is variable, and many people can live with the disease for five years and more. More than half of all people with ALS live more than three years after diagnosis.
ALS is rare. Each year in the United States and most of the world, only 1 to 2 people out of 100,000 get ALS. Men get ALS slightly more often than women do.ALS can occur at any age, but it most often starts in middle-aged and older adults.LS is rare. Each year in the United States and most of the world, only 1 to 2 people out of 100,000 get ALS. Men get ALS slightly more often than women do.