buccal smear


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.

buc·cal smear

a cytologic smear containing material obtained by scraping the lateral buccal mucosa above the dentate line, smearing, and fixing immediately; used principally for determining somatic sex as indicated by the presence of the sex chromocenter (Barr body).

buccal smear

a sample of cells removed from the buccal mucosa for purposes of obtaining a karyotype to determine the genetic sex of an individual.

buccal smear

A convenient way to obtain cells for chromosomal and other studies and to obtain a sample of DNA. The inside of the cheek is gently scraped with a spatula and the cells spread on a glass slide.

buc·cal smear

(bŭkăl smēr)
Cytologic smear containing material obtained by scraping the lateral buccal mucosa above the dentate line, smearing, and fixing immediately; used principally for determining somatic sex as indicated by the presence of the sex chromocenter (Barr body).
References in periodicals archive ?
We have collected buccal smear samples in casualty, government general hospital, Anantapuramu, from the patient attended the casualty.
In all male buccal smears sex chromatin was negative.
Nuclear enlargement changes indicating the presence of human papilloma virus (HPV) were observed in only some buccal smears of alcoholics and smokers group, (Table 2).