Down's Syndrome hand. Palm of the hand of a Down's syndrome infant, showing abnormal skin creases. Down's syndrome is due to a chromosome defect, tris

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Down's Syndrome hand. Palm of the hand of a Down's syndrome infant, showing abnormal skin creases. Down's syndrome is due to a chromosome defect, trisomy 21 - the presence of three number 21 chromosomes instead of the normal two. The main physical features are slanted eyes, a flat nose on a round head and abnormalities of the palms of hands & soles of feet. Mental attainment is usually restricted to that of a five year old child - that is, with an of between 50-60. Down's syndrome may be diagnosed antenatally by an amniocentesis test - removing a sample of amniotic fluid from the womb for analysis.

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Size: 3502px × 5088px
Photo credit: © Science Photo Library / Alamy / Afripics
License: Licensed
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Keywords: 21, clinical, condition, creases, disease, disorder, downs, healthcare, medical, medicine, palmar, syndr., syndrm., syndrome, trisomy