Template:BGDB Sexual Differentiation - Sex Determination Interactive: Difference between revisions

From Embryology
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-   mesonephric duct cells
-   mesonephric duct cells
|| Incorrect! Mesonephric duct cells, while present early in genital ridge development, are not the initiators of this process but later effected by gonad differentiation. The support cells in the genital ridge, forming the testes, express {{SRY}} and this leads to a cascade of signaling differentiating these cells into '''{{Sertoli cell}}s''', also called sustentacular cells of Sertoli.
|| Incorrect! Mesonephric duct cells, while present early in genital ridge development, are not the initiators of this process but later effected by gonad differentiation. The support cells in the genital ridge, forming the testes, express {{SRY}} and this leads to a cascade of signaling differentiating these cells into '''{{Sertoli cell}}s''', also called sustentacular cells of Sertoli.
{The cells in the adult male and female gonad forming from equivalent primordial cells in each sex are:
|type="()"}
-   Sertoli cells and thecal cells
|| Incorrect!
-   Leydig cells and interstitial cells
|| Incorrect!
-   primordial germ cells and oocytes
|| Incorrect!
+   thecal cells and interstitial cells
|| Cirrect! '''Thecal cells''' (female) and  '''interstitial cells''' (male) both form the sex hormone secreting cell population in the gonads. Leydig cells and interstitial cells are 2 names for the same cell in the testis. Primordial germ cells exist in both sexes and do form oocytes, but this is not what the question asked. The ductus deferens is the male internal genital tract formed from the mesonephric ducts.
-   ductus deferens and mesonephric ducts
|| Incorrect!


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:[[Template:Med Prac additional Information|'''Additional Information:''']]  
:[[Template:Med Prac additional Information|'''Additional Information:''']] {{testis}}
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Revision as of 14:43, 18 May 2019

Sex Determination Interactive Component

Attempt the Quiz - Sex Determination  
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Here are a few simple Quiz questions that relate to Sex Determination from the lecture and practical.

++Questions to be updated++

1 Sex determination occurs initially through the SRY transcription factor acting on the:

  primordial germ cells
  anterior pituitary
  testes support cells
  ovary support cells
  mesonephric duct cells

2 The cells in the adult male and female gonad forming from equivalent primordial cells in each sex are:

  Sertoli cells and thecal cells
  Leydig cells and interstitial cells
  primordial germ cells and oocytes
  thecal cells and interstitial cells
  ductus deferens and mesonephric ducts


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Practical 12: Sex Determination | Early Embryo | Late Embryo | Fetal | Postnatal | Abnormalities | 2011 Audio


Additional Information: testis