20. khalili down syndrome
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Transcript of 20. khalili down syndrome
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DOWN SYNDROME
khalili amin dmd
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Definition
Down syndrome (DS) or Down's syndrome, also known as trisomy 21, is a chromosomal condition
caused by the presence of all or part of a third copy of chromosome 21. Down syndrome is the most common
chromosome abnormality in humans.
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Sign and symptoms
A small head compared to body sizeBroad feet with short toesEars that are small and set lowShort arms and legs compared to length of bodyBroad hands with short fingers and a single crease across the palmSmall nose and small mouth, in which the tongue may be relatively largeLack of muscle toneAbility to extend body joints; extreme flexibilityEyes that slant upward and outward.
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Dental correlation
poor dental health and acute neurological disease were associated with the severity of intellectual disability and ageing.
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