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Down syndrome is one of the most common genetic disabilities. Down syndrome is a learning and congenital disability
Common Features
Head Shape
Flat profile
Brachycephaly
Rounded face
An extra chromosome 21, characterizes Down syndrome. The extra chromosome more often than not is originated from the biological mother, the risk is higher once the mother reaches the age of 35. Down syndrome occurs in 1 out of 800 births.
Down syndrome occurs due to the presence of an extra chromosome 21.
89% of the trisomic embryos are due to fertilization of the ovum containing this extra chromosome rather than fertilization of trisomic spermatozoa.
A number of factors are said to cause the result of this extra chromosome although research is still on going. Some of these factors include:
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Environmental issues (ex. Toxins)
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Medical issues (ex. X-ray)
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Smoking and alcoholism
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Biological mothers age (age >35)
Hands
Small hands
Short fingers
Missing joint in the little finger (clinodactyly)
One single crease or two small ones
Feet
Small feet
Chubby toes
Large sandal gap
Less creases at the bottom of the foot
Individuals with Down syndrome tend to be
1.Sensitive
2.Calm
3.Easygoing
4.Outgoing
5.Friendly
6.Affectionate
Down Syndrome
Facial Features
Small features
Epicantic fold near eyes
Upward slanting eyes
Flat nose
Small mouth cavity
Large tongue
Diagnosis
