1. Urogenital System Development
By:
Dr. Khaled Elmasry
Assistant Lecturer of Human Embryology & Anatomy
Mansoura College of Medicine
Mansoura University, Egypt
2014

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. Q1. What are the possible congenital
Anomalies of the Kidneys ???

4. • The kidney has 2 embryological origins !!!
• Ascent of the kidney.
• Rotation of the kidney.
• Lobulation of the kidney.
• Number
• Shape.

12. Q2. What are the embryological origins of
the Urinary Bladder & what are its
possible congenital Anomalies ???

13. Q3. What are the embryological origins of
the male and female Urethra & what are
its possible congenital Anomalies ???

14. • Cloaca
UGS, Anorectal canal
• UGS:
Vesicourethral Canal & definitive UGS
• Definitive UGS:
Pelvic part & Phallic part.

15. 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:

22. Q4. Describe the process of descent of the
testes and its possible anomalies ???

28. • What is Gubernaculum !!!
• What is Cryptorchidism ??!!!
• What is the difference between
Cryptorchidism & ectopic testes or
maldecended testes ???!!!

32. Q5. What are the adult derivatives of
Mesonephric ducts in male and in
female ???

33. 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)

34. Q6. What are the adult derivatives of
Paramesonephric ducts in female ???

35. Uterine tube (proximal Vertical limb)
uterus ( horizontal limb and fused part)
possibly part of the vagina
 Its remnant in male is :
 Prostatic utricle

36. • THE PERITONEUM IS A COMPLETELY
CLOSED SAC EXCEPT IN.....................
• Do You Know WHY ???????
• Embryology Can Tell You .......

45. Q7. What are the important Congenital
Anomalies of the female uterus you
can face clinically ???

46. Uterine anomalies based on the American Fertility Society Classification Scheme.
References: Kaproth-Joslin, et al (2013). Radiol Clin N Am 51:967-981.

47. Q8. Embryological Origin of the Human
External Genitalia (Male & Female)???