Down Syndrome 3 Essay

This essay has a total of 657 words and 4 pages.

Down Syndrome 3


Down Syndrome
Down Syndrome is a chromosomal disorder. It occurs in about 1 of every 800 births. People
with Down syndrome may have mild to severe learning disabilities. Physical symptoms
include a small skull, extra folds of skin under the eyes, and a protruding tongue. People
with Down syndrome are subject to a variety of medical problems including heart
abnormalities and thyroid gland dysfunction. Survival rates have been increased
dramatically in recent years as problems specific to Down syndrome become known, allowing
the early treatment. The life expectancy of people with Down syndrome now approaches that
of people with out it. Usually it's around 55 years old. You would have numerous
abnormalities; it wouldn't go over well in school. People don't accustom to that very well
in public schools.


The genetic cause for Down syndrome is when a person inherits all or part of an extra copy
of chromosome 21. Trisomy 21, the inheritance of an entire third copy of this chromosome,
accounts for 95 percent of Down syndrome cases. Two other abnormalities each account for 2
to 3 percent of all cases. The first, translocation, takes place when a child inherits an
extra piece of chromosome 21 attached to a different chromosome. The second, called mosaic
Down syndrome, results when only some cells in the body have the extra chromosome. There
is no cure for Down syndrome although prenatal tests are available to identify fetuses
with the disorder.

Down syndrome can be diagnosed just by looking at the baby at birth. The facial features
and characteristics can tell you that. If the attending physician suspects Down syndrome,
a karyotype - a blood or tissue sample stained to show chromosomes grouped by size,
number, and shape - will be performed to verify the diagnosis. The most familiar physical
traits of Down syndrome include:

· Low muscle tone
· Flat facial profile
· Upward slant to the eyes
· Abnormal shape and small size of the ears
· Single deep crease across the center of the palm
· Excessive ability to extend the joints
· Fifth finger has one bending joint instead of two
· Small skin folds on the inner corners of the eyes
· Excessive space between large and second toe
· Enlargement of tongue in relationship to size of mouth
The majority of these defects can be corrected, resulting in long-term health
improvements. Children with Down syndrome also tend to have increased susceptibility to
infection, respiratory problems, obstructed digestive tracts, and childhood leukemia.

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