Urogenital system embryology

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Urogenital system embryology

  1. 1. Urogenital System Development By: Dr. Khaled Elmasry Assistant Lecturer of Human Embryology & Anatomy Mansoura College of Medicine Mansoura University, Egypt 2014
  2. 2. Q1. What are the possible congenital Anomalies of the Kidneys ??? Q2. What are the embryological origins of the Urinary Bladder & urethra what are its possible congenital Anomalies ??? Q4. Describe the process of descent of the testes and its possible anomalies ??? Q5. What are the adult derivatives of Mesonephric and paramesonephric ducts in male and in female ??? elmasryanatomy@blogspot.com
  3. 3. Q1. What are the possible congenital Anomalies of the Kidneys ???
  4. 4. • The kidney has 2 embryological origins !!! • Ascent of the kidney. • Rotation of the kidney. • Lobulation of the kidney. • Number • Shape.
  5. 5. Q2. What are the embryological origins of the Urinary Bladder & what are its possible congenital Anomalies ???
  6. 6. Q3. What are the embryological origins of the male and female Urethra & what are its possible congenital Anomalies ???
  7. 7. • Cloaca UGS, Anorectal canal • UGS: Vesicourethral Canal & definitive UGS • Definitive UGS: Pelvic part & Phallic part.
  8. 8. Urinary Bladder arises from: • Vesicourethral Canal • Apex: Allantois • Trigone: mesonephric duct. Male Urethra arises from: • Prostatic urethra before the opening of mesonephric duct--> • Prostatic urethra after the opening of mesonephric duct + membranous urethra--> • Spongy urethra--> • Glans--> • Female Urethra arises from:
  9. 9. Q4. Describe the process of descent of the testes and its possible anomalies ???
  10. 10. • What is Gubernaculum !!! • What is Cryptorchidism ??!!! • What is the difference between Cryptorchidism & ectopic testes or maldecended testes ???!!!
  11. 11. Q5. What are the adult derivatives of Mesonephric ducts in male and in female ???
  12. 12. In Both M & F:  ureteric bud  trigone of the bladder In M.  Ejaculatory duct  Vas  Seminal vesicle  Epididymis In F.  Gartner's duct (mesonephric duct remnant in female)
  13. 13. Q6. What are the adult derivatives of Paramesonephric ducts in female ???
  14. 14. Uterine tube (proximal Vertical limb) uterus ( horizontal limb and fused part) possibly part of the vagina  Its remnant in male is :  Prostatic utricle
  15. 15. • THE PERITONEUM IS A COMPLETELY CLOSED SAC EXCEPT IN..................... • Do You Know WHY ??????? • Embryology Can Tell You .......
  16. 16. Q7. What are the important Congenital Anomalies of the female uterus you can face clinically ???
  17. 17. Uterine anomalies based on the American Fertility Society Classification Scheme. References: Kaproth-Joslin, et al (2013). Radiol Clin N Am 51:967-981.
  18. 18. Q8. Embryological Origin of the Human External Genitalia (Male & Female)???

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