LS2 Lect31

LS2 Lect31 - REPRODUCTION I OUTLINE: Sexual differentiation...

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REPRODUCTION I Prof. Peter Ellison, ofFce hours M 2-3 or by appt. Chapter 17 OUTLINE: Sexual differentiation Gametogenesis Male reproductive axis MONDAY: ±emale reproductive axis ±ertilization
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Under the infuence oF testis determining Factor, a product oF the SRY gene, the migrating germ cells in a male associate with the inner, medullary portion oF the sex cords. These then join to the WolF±an duct system to Form the seminiFerous tubules, rete testis, epididymis, and vas deFerens oF the male reproductive tract. Sperm cells will eventually be shed into this duct system in the interior oF the gonad.
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In the absence of TDF the germ cells associate with the outer, cortical portion of the sex cords, which produce clusters of granulosa cells to surround each oögonium. These primordial follicles remain in the cortex of the gonad and will potentially be shed to the exterior of the organ in ovulation.
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LS2 Lect31 - REPRODUCTION I OUTLINE: Sexual differentiation...

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