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External Genitalia — Urogenital Development

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External Genitalia
Urogenital Development · External Genitalia · medium
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External Genitalia MCQs: practice questions

Sample External Genitalia multiple-choice questions from Urogenital Development.

  1. Which Müllerian structures are absent or nearly absent in complete androgen insensitivity?

    • A. Seminal vesicles
    • B. Epididymis and ductus deferens
    • C. Prostate and penis
    • D. Testes
    • E. Uterus and uterine tubes
  2. Where does the urethral opening lie in hypospadias?

    • A. Glans tip exclusively
    • B. Scrotal skin only
    • C. Dorsal surface of the penis
    • D. Ventral surface of the penis
    • E. Perineal skin only
  3. Which embryonic structure forms the corpus spongiosum penis?

    • A. Mesonephric tubules
    • B. Paramesonephric duct
    • C. Urogenital folds
    • D. Phallus
    • E. Labioscrotal swellings
  4. What is the adult remnant of the male gubernaculum?

    • A. Round ligament of uterus
    • B. Ovarian ligament
    • C. Median umbilical ligament
    • D. Gubernaculum testis
    • E. Tunica vaginalis
  5. Which embryonic structure forms the glans penis?

    • A. Urogenital sinus
    • B. Phallus
    • C. Urogenital folds
    • D. Mesonephric duct
    • E. Labioscrotal swellings
  6. What do the urogenital folds form in the male?

  7. What congenital anomaly results from persistence of a large processus vaginalis?

  8. What is the developmental defect in hypospadias?

  9. What is a common presenting feature of complete androgen insensitivity?

  10. Which anomaly is generally associated with epispadias?

  11. What congenital anomaly results from a small persistent processus vaginalis allowing peritoneal fluid to enter?

  12. What does the phallus develop into in the female?

  13. Which embryonic structure forms the corpora cavernosa penis?

  14. What is the external genital phenotype in complete androgen insensitivity?

  15. What do the urogenital folds form in the female?

  16. What is the developmental defect in epispadias?

  17. What do the labioscrotal swellings form in the male?

  18. Which type of hair is typically sparse or absent in complete androgen insensitivity?

  19. Which three primordial structures are visible externally in the indifferent embryo?

  20. Where may undescended testes be located in complete androgen insensitivity?

  21. Which embryonic structure forms the penile raphe?

  22. What happens to the external genitalia with 5α-reductase deficiency?

  23. What is the genetic basis of complete androgen insensitivity syndrome?

  24. What do the labioscrotal swellings form in the female?

  25. Which hormone is particularly important for development of male external genitalia?

  26. What does the phallus develop into in the male?

  27. What enzyme converts testosterone to dihydrotestosterone?

  28. Which male internal reproductive structures remain normal in 5α-reductase deficiency according to the source?

  29. What curvature may accompany hypospadias?

  30. What happens to the processus vaginalis during male testicular descent?

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