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MORPHOLOGICAL FEATURES AND MORPHOMETRIC PARAMETERS OF HUMAN FETAL VERMIFORM APPENDIX AT DIFFERENT GESTATIONAL

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Author(s): Reshma.Mohammad | Dr. Subhadra Devi Velichety | K. Thyagaraju | MD. Azharuddin | K. Jyothirmayi

Journal: International Journal of Anatomy and Research
ISSN 2321-4287

Volume: 01;
Issue: 2;
Start page: 18;
Date: 2013;
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Keywords: VESTIGIAL | VERMIFORM APPENDIX | MCBURNEY’S POINT | GESTATIONAL AGE | MORPHOLOGY | MORPHOMETRY.

ABSTRACT
Background:Vermiform appendix is a vestigial organ of variable position in the abdomen. Its location, size andshape are subject to alterations with the race of the population and limited information is available on devel-opmental morphology and morphometry of fetal appendix.Materials and Methods:In the present study 60appendix specimens from aborted human fetuses of 17-40 weeks gestational age and both sexes were studiedby dissection method for age related morphological features and morphometric parameters. The morphologi-cal parameters observed include its location in relation to abdominal region, caecum and ileum, clock position,position of base in relation to caecal wall and direction of tip of appendix. The morphometric parameters oflength, diameter and distance between ileo-caecal orifice and appendicular orifice were measured.Results:The location of appendix in relation to abdominal region presented higher incidence of sub-hepatic position inless than 30 weeks fetuses and right iliac fossa location in more than 30 weeks fetuses.Discussion: in comparisionwith the literature available on adult vermiform appendix the observations in the present study arein favor ofinfluence of developmental processes on the localization of appendix including its base, ileo-caecalorifice,direction of tip, distance from McBurney’s point.Conclusion:Results of this work suggests variability in local-ization of appendix during prenatal development and the influence of gestational age, sex, size, growth ofcaecum and gut on its final position and was different from that of adults. There is increase in themorphomet-ric parameters of appendix with increase in gestational age. Both morphological and morphometric param-eters were different between sexes.
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