Buccal smear
Alternate Names : Sex chromatin test
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Throat anatomy
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Structures of the throat include the esophagus, trachea, epiglottis and tonsils.
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Buccal smear
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A buccal smear is a test where cells are taken from the tongue. Cells are collected by scraping the tongue with a spatula. The cells are then placed on a slide and the sample is taken to the laboratory for evaluation. The cells are evaluated for the presence of Barr bodies (a mass seen in a normal female sex chromosome). The buccal smear test can confirm whether the patient is a male or female.
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