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Katelyn Karsnia

Down syndrome - Symptoms and causes - Mayo Clinic - 1 views

  • Down syndrome is a genetic disorder caused when abnormal cell division results in an extra full or partial copy of chromosome 21.
  • Each person with Down syndrome is an individual — intellectual and developmental problems may be mild, moderate or severe.
  • Small head Short neck Protruding tongue Upward slanting eye lids (palpebral fissures) Unusually shaped or small ears Poor muscle tone Broad, short hands with a single crease in the palm Relatively short fingers and small hands and feet Excessive flexibility Tiny white spots on the colored part (iris) of the eye called Brushfield's spots Short height
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  • mild to moderate cognitive impairment
  • usually are diagnosed before or at birth.
  • three genetic variations can cause Down syndrome:
  • Being carriers of the genetic translocation for Down syndrome.
  • Trisomy 21
  • Mosaic Down syndrome.
  • Translocation Down syndrome.
  • Advancing maternal age.
  • three genetic variations can cause Down syndrome:
  • Trisomy 21
  • Having had one child with Down syndrome.
  • Heart defects
  • Gastrointestinal (GI) defects.
  • Immune disorders.
  • Immune disorders.
  • Sleep apnea.
  • Sleep apnea.
  • Obesity.
  • Obesity.
  • Spinal problems.
  • Leukemia
  • Leukemia
  • Dementia.
  • Other problems
jkolodji

What is Down Syndrome? | National Down Syndrome Society - 0 views

  • In every cell in the human body there is a nucleus, where genetic material is stored in genes. Genes carry the codes responsible for all of our inherited traits and are grouped along rod-like structures called chromosomes. Typically, the nucleus of each cell contains 23 pairs of chromosomes, half of which are inherited from each parent. Down syndrome occurs when an individual has a full or partial extra copy of chromosome 21.
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    Many resources
drewevanaho

Down Syndrome | Center for Parent Information and Resources - 0 views

  • Down syndrome is the most common and readily identifiable chromosomal condition associated with intellectual disabilities. It is caused by a chromosomal abnormality: for some unknown reason, an accident in cell development results in 47 instead of the usual 46 chromosomes. This extra chromosome changes the orderly development of the body and brain. In most cases, the diagnosis of Down syndrome is made according to results from a chromosome test administered shortly after birth.
    • drewevanaho
       
      Down Syndrome Definition
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