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34 Cards in this Set
- Front
- Back
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1. What duct develops into the female repro duct?
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Paramesonephric Ducto or Mullerian Duct
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2. What duct develops into the Male repro duct?
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Mesonephric Duct or Wolffian duct
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3. In the male, what does the primary sex cord develop into?
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Seminiferous cord then rete testis and seminiferous tubules
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4. What does the spermatogonium develop from?
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Primordial germ cells
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5. During development, (at 3 weeks) the primordial germ cells migrate from where to where?
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Wall of yolk sac to genital ridge
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6. What parts of the adult male repro system are derived from the mesonephric duct?
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Epididymis, ductus deferens, seminal gland, efferent ductules
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7. What parts of the adult female repro system are derived from the paramesonephric duct?
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Uterine tube, uterus
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8. What does the gubernaculum develop into in the female?
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Suspensory ligament of the uterus, and round ligament of the uterus
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9. What does the gubernaculum develop into in the male?
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Scrotal ligament
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10. What is developmental abnormality leads to gonadal dysgenesis?
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Lack of formation of the genital ridge
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11. What causes male pseudohermaphroditism?
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Inadequate testosterone and MIF production in the fetal testes
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12. What causes female pseudohermaphroditism?
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Exposure of the female fetus to excessive androgens, commonly congenital hyperplasia
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13. What is cryptorchidism?
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Non-descent of the testes
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14. What causes micropenis?
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Fetal testicular failure, usually due to cryptopituitarism
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15. What causes vaginal atresia?
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Failure of canalization of the vaginal plate, results in blockage of the vagina
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16. What causes an imperforate hymen?
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Failure of the inferior end of the vaginal plate to perforate many anomalies exist
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17. What causes epispadias?
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The urethral opening is on the dorsal portion of the glans penis
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18. What causes a congenital inguinal hernia
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A persistant processus vaginalis exists, the communication between tunica vaginalis and peritoneal cavity fails to close
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19. What causes Didelphys?
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Mullerian duct fusion failed, double uterus/cervix/vagina
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20. What causes a unicornate uterus?
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One paramesonephric duct fails to develope, result is a uterus w/ one uterine tube
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21. What causes a septate Uterus?
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Failure of the paramesonephric ducts to complete fusion
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22. What causes a hydrocele?
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Abdominal end of the processus vaginalis stays open and fills w/ peritoneal fluid, normally the processus vaginalis gets completely obliterated this occurs in the scrotum
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23. What causes a bicornate uterus?
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Dublication of the superior part of the body of the uterus
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24. When do interstitial cells begin to secrete testosterone and androstendione?
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About week 8
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25. What do the cortical cords in the developing ovaries become?
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Primordial follicle and eventually oogonium
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26. What forms the paradidymis?
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Remnants of the paragenital mesonephric tubules
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27. Does the uterine tube develop with the ovary?
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Nope, the develope separately
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28. How is the vagina formed?
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The upper 1/3 is formed by vacuolization of the paramesonephric tissue, while the lower 2/3 is actually formed by vacuolization of the sinovaginal bulbs
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29. What invaginates to form the spongy urethra?
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Urethral plate
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30. What is the big problem with ectopic testes.... besides the obvious?
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Spermatogonium are undifferentiated and may show neoplastic change and become cancerous. If they don’t descend after 18 months, they are surgically removed.
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31. After the processus vaginalis has made it into the scrotum w/ the testes what happens to it.
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It degenerates, if it doesn’t you will have a hydrocele
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32. In the case of cryptorchidism, where do the testes usually end up?
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Stuck at the deep inguinal ring
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33. What does the mesenchyme that separates the seminferous tubules become?
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Interstitial cells of leydig
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34. What stimulates testosterone production?
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hCG
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