Down Syndrome
- caused by the presence of extra 21st chromosome
- characterized by a combination of major and minor differences in structure with some impairment of cognitive physical growth as well as facial appearance.
- estimated at 1 per 800 to 1,000 births
- heavily influenced by the age of the mother. Other factors may also play a role
- common physical features:
- single transverse palmar crease
- an almond shape to the eyes
- shorter limb
- poor muscle tone
- a larger than normal space between the big and second toes
- protruding tongue.
- higher risk for
- congenital heart defects
- gastroesophageal reflux disease
- recurrent ear infection
- obstructive sleep apnea
- thyroid dysfunction
- brain development disorder that impairs social interaction and communication
- causes restricted and repetitive disorder
- affects many parts of the brain - poorly understood
- There is no known cure
- repetitive behavior
- stereotypy - purposeless movement
- compulsive behavior
- ritualistic behavior
- sameness
- restricted behavior
- others
- sleep problems
- difficulty in falling asleep
- frequent nocturnal awakenings
- early morning awakenings
reference: wikipedia
I planned to add some pictures, but due to too slow internet connection, i cannot upload them, maybe later.