Study of Various Patterns of Arrangements of Circum Vallate Papillae in Tongues of Human Foetuses
Journal Title: IJAR-Indian Journal of Applied Research - Year 2016, Vol 6, Issue 2
Abstract
Background ; Papillae of tongue were recognized as organs of taste. Four types of papillae are present in the Human tongue. In these Circum Vallate Papillae are arranged commonly in the form of “V” but other patterns of arrangement of Circum Vallate Papillae are frequently noted in colour races, hence the present study has been taken up. There is not much data available on the arrangement and number of Circum Vallate Papillae in the human beings particularly in Indians. Method : 50 dead fetuses were collected from the various maternity hospitals , after fixing these fetuses with formalin, Crown Rump length was measured and age of the fetuses was determined by using that Crown Rump length. Fetuses were arranged according to their gestational age into five groups. By using dissection instruments tongues of the fetuses were taken out by giving incision along the floor of mouth. By using H2O2 coating over the tongue was removed, by using hand lens arrangement and number of Circum Vallate Papillae are noted and conclusion was made by using that data. Result & Conclusion : In the present study Circum Vallate Papillae have been observed at the gestational age of 20 wks and a total number of 7 Circum Vallate Papillae were present in the female fetus in that age group. On an average 9 to 10 Circum Vallate Papillae were counted in the age group from 21 to 40weeks . Circum Vallate Papillae were arranged ,in different patterns. Inverted “ V” pattern was observed in 18 male and 16 female fetuses which is the dominant pattern. Inverted “ Y” pattern was observed in 3 males and 4 females which is the next dominant pattern after the “V” pattern. Duplication of inverted “V” was observed in 1 male and 2 female fetuses. Inverted “T” pattern was observed in 1 female fetus. Duplication of stem of inverted “Y” was observed in one female fetus. Irregular pattern was observed in 2 male and 2 female fetuses.
Authors and Affiliations
Dr. JANAKI V, Dr. VEENATAI J, Dr. SUDHAKAR BABU D, Dr. NAVAKALYANI. T
Keywords
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