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.
Amyotrophic lateral sclerosis (ALS) usually strikes between the ages of 40 and 70, but there have been cases of it in young adults, children and older people. The average age for getting ALS is 55. ALS is known as Lou Gehrigâs disease in the USA. Gehrig, who played baseball for the New York Yankees, died of the disease in 1941.