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Genitourinary Embryology 2

54 Questions
Embryology Quizzes & Trivia

Test on the urinary tract embryology

Questions and Answers
  • 1. 
    • A. 

      Pronephros

    • B. 

      Mesonephros

    • C. 

      Metanephros

  • 2. 
    • A. 

      Metanephros

    • B. 

      Mesonephros

    • C. 

      Pronephros

  • 3. 
    Which developmental stage disappears after week 4 of life?
    • A. 

      Metanephros

    • B. 

      Pronephros

    • C. 

      Mesonephros

  • 4. 
    Adjacent to somites 4 through 14.
    • A. 

      Metanephros

    • B. 

      Mesonephros

    • C. 

      Pronephros

  • 5. 
    It is the principal excretory organ during early embryonic life.
    • A. 

      Pronephros

    • B. 

      Mesonephros

    • C. 

      Metanephros

  • 6. 
    Contains structures similar to the nephron of the mature kidney.
    • A. 

      Pronephros

    • B. 

      Mesonephros

    • C. 

      Metanephros

  • 7. 
    Composed of as many as ten pairs of simple straight tubules.
    • A. 

      Pronephros

    • B. 

      Mesonephros

    • C. 

      Metanephros

  • 8. 
    Choose the correct order for developmental stages.
    • A. 

      Metanephros,Pronephros, Mesonephros

    • B. 

      Pronephros, Metanephros, Mesonephros

    • C. 

      Pronephros, Mesonephros, Metanephros

    • D. 

      Metanephros, Mesonephros, Pronephros

  • 9. 
    Final Stage of renal development
    • A. 

      Metanephros

    • B. 

      Mesonephros

    • C. 

      Pronephros

  • 10. 
    Originates as buds from mesonephric duct that joins the cloaca during the 8th week of life.
    • A. 

      Metanephros

    • B. 

      Mesonephros

    • C. 

      Pronephros

  • 11. 
    Most primitive renal structures in humans?
    • A. 

      Pronephros

    • B. 

      Mesonephros

    • C. 

      Metanephros

  • 12. 
    Develops a cup-like outgrowth into which a knot of capillaries is pushed. AKA: Bowman's capsule.
    • A. 

      Metanephros

    • B. 

      Mesonephros

    • C. 

      Pronephros

  • 13. 
    Composed of metemorphic tubules.
    • A. 

      Pronephros

    • B. 

      Mesonephros

    • C. 

      Metanephros

  • 14. 
    What tissue forms the loop of Henle?
    • A. 

      Mesonephric

    • B. 

      Methanephric

    • C. 

      Pronephros

  • 15. 
    Degenerates around the 8th week of life.
    • A. 

      Pronephros

    • B. 

      Mesonephros

    • C. 

      Metanephros

  • 16. 
    Remnants contribute to development of male genital system.
    • A. 

      Metanephros

    • B. 

      Mesonephros

    • C. 

      Pronephros

  • 17. 
    Metonephric cap continues to grow.
    • A. 

      Metanephros

    • B. 

      Mesonephros

    • C. 

      Pronephros

  • 18. 
    The ureteral bud expands to form renal pelvis.
    • A. 

      Pronephros

    • B. 

      Metanephros

    • C. 

      Mesonephros

  • 19. 
    What stage are ureters developed in?
    • A. 

      Metanephros

    • B. 

      Mesonephros

    • C. 

      Pronephros

  • 20. 
    The ureteral bud originates from where?
    • A. 

      Renal Duct

    • B. 

      Wolf Duct

    • C. 

      Sinus Duct

    • D. 

      Wolffian Duct

  • 21. 
    Numerous outgrowth from renal pelvis from the primary collecting ducts occurs in what stage?
    • A. 

      Mesonephros

    • B. 

      Pronephros

    • C. 

      Metanephros

  • 22. 
    The ureter ascends and rotates to a _____degree angle from the kidney.
    • A. 

      60

    • B. 

      90

    • C. 

      120

  • 23. 
    The renal pelvis pushes into the developing ___________ to form collecting ducts.
    • A. 

      Parenchyma

    • B. 

      Mullerian

    • C. 

      Endodermal

  • 24. 
    The urinary bladder develops from what tissue?
    • A. 

      Mesodermal

    • B. 

      Methanephric

    • C. 

      Endodermal

  • 25. 
    The ventral portion of the urogenital sinus forms the _______________.
    • A. 

      Bladder

    • B. 

      Ureters

    • C. 

      Trigone

  • 26. 
    During embryogenesis, the fetus develops genital structures that are influenced by the presence or absence of _____________.
    • A. 

      Uterus

    • B. 

      Bacteria

    • C. 

      Testis

    • D. 

      Hormones

  • 27. 
    The ventral portion of the urogenital sinus forms ___________.
    • A. 

      Proximal urethra of females

    • B. 

      Proximal urethra of males

    • C. 

      Urethra of males

    • D. 

      Bladder of female only

  • 28. 
    The ventral portion of the urogenital sinus forms ___________.
    • A. 

      Bladder and entire urethra of females

    • B. 

      Bladder and entire urethra of males

    • C. 

      Bladder only of males

    • D. 

      Urethra only

  • 29. 
    Endodermal tissue from the dorsal portion of the urogenital sinus forms what?
    • A. 

      Distal urethra

    • B. 

      Proximal urethra

    • C. 

      Entire urethra

  • 30. 
    The location between the uterus and labia majora becomes what?
    • A. 

      Ovarian ligament

    • B. 

      Round ligament

    • C. 

      Long ligament

  • 31. 
    The ____________ is formed by mesodermal tissue that lays between common excretory duct and the ureteral bud.
    • A. 

      Urogenital sinus

    • B. 

      Trigone

    • C. 

      Wolffian Duct

    • D. 

      Parenchyma

  • 32. 
    When does the Mullerian ductile system start to turn into ovaries?
    • A. 

      Week 4

    • B. 

      Week 7

    • C. 

      Week 8

  • 33. 
    What do the ovaries attach to?
    • A. 

      Gubernaculum

    • B. 

      Mullerian

    • C. 

      Mesonephric

  • 34. 
    The Gubernaculum is located where?
    • A. 

      Between the uterus and ovary

    • B. 

      Between the ovary and fallopian tubes

    • C. 

      Between the ovary and ovarian ligament

  • 35. 
    The gubernaculum becomes what
    • A. 

      Round ligament

    • B. 

      Labia majora

    • C. 

      Ovarian ligament

  • 36. 
    'what do the uterine/fallopian tubes develop from?
    • A. 

      Mullerian duct

    • B. 

      Sinus duct

    • C. 

      Round ligament

    • D. 

      Gubernaculum

  • 37. 
    The two mullerian ducts join together but have?
    • A. 

      A partial fusion with a septum

    • B. 

      A total fusion with a septum

    • C. 

      A partial fusion without a septum

    • D. 

      A total fusion without a septum

  • 38. 
    The mullerian ducts form the uterovaginal canal and the septum disappears?
    • A. 

      True

    • B. 

      False

  • 39. 
    The mullerian ducts fuse when?
    • A. 

      13th week

    • B. 

      12th week

    • C. 

      8th week

  • 40. 
    The sinovaginal node receives a limited contribution from what?
    • A. 

      Urogenital sinus

    • B. 

      Mesonephric duct

    • C. 

      Hymen

  • 41. 
    The Hymen is the what?
    • A. 

      The remains of the testis

    • B. 

      The remains of the mullerian tubercle

    • C. 

      The labia minora

  • 42. 
    The Labia minora is formed from?
    • A. 

      Urethral folds

    • B. 

      Ureter folds

    • C. 

      Urethral lips

    • D. 

      Mullerian remains

  • 43. 
    The gonad forms into either the testis or ovary at what week?
    • A. 

      7

    • B. 

      8

    • C. 

      12

  • 44. 
    The gland (gonad) does what if it became a testis?
    • A. 

      Increases in size and becomes more caudal located.

    • B. 

      Decreases in size and becomes more caudal located.

    • C. 

      Shortens into a compact organ

    • D. 

      A and C

    • E. 

      A and B

  • 45. 
    The network of strands form that is continuous with the testis cords
    • A. 

      True

    • B. 

      False

  • 46. 
    The functioning unit of the testis is the seminiferous tubules
    • A. 

      True

    • B. 

      False

  • 47. 
    Spermatozoa is produced in the seminiferous tubules
    • A. 

      True

    • B. 

      False

  • 48. 
    The testis remain where until the seventh month?
    • A. 

      Abdominal end of the inguinal canal

    • B. 

      Scrotal sac

    • C. 

      Mullerian duct

  • 49. 
    Passes through the inguinal canal at the 8th month
    • A. 

      Testis

    • B. 

      Ovaries

    • C. 

      Uterus

  • 50. 
    The Genital tubercle forms what?
    • A. 

      Phallus

    • B. 

      Corpora cavernosa

    • C. 

      Urogenital sinus orifice

  • 51. 
    Paired mesenchymal columns within the shaft of the penis
    • A. 

      Corpora cavernosa

    • B. 

      Circular coronary sulcus

    • C. 

      Glands penis

    • D. 

      Penile urethra

  • 52. 
    What happens at the 10th week?
    • A. 

      Urethral folds start to fuse

    • B. 

      The fusion is complete

    • C. 

      The glans penis becomes defined

  • 53. 
    What happens at the 14th week
    • A. 

      The glans penis becomes defined

    • B. 

      Urethral folds start to fuse

    • C. 

      The fusion is complete

  • 54. 
    What starts growth during the 3th month and finishes 2 months later and surrounds the glans
    • A. 

      Foreskin

    • B. 

      Prepuce

    • C. 

      Bladder neck

    • D. 

      Issu