1. Downs
... 's the condition became known as Down syndrome in honor of the English doctor John Langdon Down. Who, in 1866, studied people with mental retardation and noted distinct physical features in them. Some of the physical features associated with Down syndrome are low muscle tone, many newborns appear as floppy and not toned, they have flat facial features especially a small nose with a ... retardation, which ranges from mild to moderate. People with Down syndrome suffer from congenital heart defects, which affect approximately 40-50% of these people. Their poor muscle tone makes much physic...
- Word Count: 1117
- Approx Pages: 4
- Has Bibliography
- Grade Level: High School