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ORIGINAL ARTICLE
Year : 2019  |  Volume : 33  |  Issue : 1  |  Page : 6-10

Morphogenesis of urinary bladder in human fetuses


1 Department of Anatomy, Regional Institute of Medical Sciences, Imphal, Manipur, India
2 Department of Obstetrics and Gynaecology, Regional Institute of Medical Sciences, Imphal, Manipur, India

Correspondence Address:
Yanglem Elizabeth Devi
Department of Anatomy, Regional Institute of Medical Sciences, Imphal, Manipur
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jms.jms_16_19

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Introduction: The urinary bladder is a temporary reservoir for urine brought from the kidneys by the ureters. It develops from the upper expanded part of urogenital sinus. There is paucity of literature regarding development of urinary bladder during various stages of fetal life. Hence, this study was done to observe the changes taking place in the development of normal urinary bladder during various stages of fetal life. Materials and Methods: The study was conducted in the Department of Anatomy, Regional Institute of Medical Sciences (RIMS), Imphal for 2 years from 2011 to 2013 after taking approval from the ethical committee of the institute. Fifty fetuses of different gestational age ranging from 15 weeks to term which were products of medical termination of pregnancy were collected from Department of Obstetrics and Gynaecology, RIMS. Results: Three shapes of bladder were visible during the fetal life, i.e., round, ellipsoid, and pyramidal. Round and ellipsoid shape were visible during the early fetal period, and bladder assumed more pyramidal shape during later fetal life. Conclusion: Urinary bladder assumed almost adult shape from 33 weeks onward with presence of four surfaces, i.e., one superior, two inferolateral, and one posterior surface or base.


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