Trisomy 21 Down Syndrome

This disorder was discovered by a british doctor named John Langdon Down in 1866. He discovered it is a chromosomal disorder caused by the presence of a (or part of) a 21st chromosome. 

-Congenital Heart Disease
-Hearing Problems
-intentional Problems
-Celiac Disease
-Eye Problems
-Thyroid Dysfunctions
-Skeletal Problems
-Dementia 

-Flat Face with an Upward Slant to the Eye
-Deep Creases in the Palm of the Hand
-White spots on the iris of the eye
-Poor Muscle Tone
-Small Hands and Feet