A high local concentration of testosterone within the seminiferous tubules is essential for sustaining sperm production.
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Q120: Progesterone
A)exerts a strong inhibitory influence on the
Q121: Failure of the testes to descend into
Q122: The Leydig cells secrete testosterone in response
Q123: The significance of the scrotal location of
Q124: The Sertoli cells are located in the
Q126: Testosterone promotes closure of the epiphyseal plate.
Q127: The release of GnRH inhibits the secretion
Q128: Inhibin is produced by the Sertoli cells
Q129: One spermatogonium containing 46 chromosomes yields two
Q130: In the male, the primary reproductive organs
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