Male Gonad Regulation Axis
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Questions and Answers

In the context of testosterone levels, what does hypogonadism imply?

  • Both defective spermatogenesis and testosterone production (correct)
  • Defective testosterone production only
  • Overproduction of testosterone
  • Defective spermatogenesis only
  • Which genetic condition is characterized by impaired testosterone production and azoospermia?

  • Down syndrome
  • Klinefelter’s syndrome (correct)
  • Cri du chat syndrome
  • Turner syndrome
  • What is the percentage of testosterone that is bound to sex hormone-binding globulin (SHBG)?

  • 2-3%
  • 55%
  • 45% (correct)
  • 50%
  • What is the most common cause of androgen deficiency in men?

    <p>Klinefelter’s syndrome</p> Signup and view all the answers

    Which condition leads to delayed puberty or hypogonadism with increased gonadotropins?

    <p>Hypogonadotropic hypogonadism</p> Signup and view all the answers

    What is the hormone synthesized by the hypothalamus in a pulsatile fashion?

    <p>Gonadotropin-Releasing Hormone (GnRH)</p> Signup and view all the answers

    What is the primary function of LH?

    <p>Induce testosterone synthesis in Leydig cells</p> Signup and view all the answers

    Impaired pulse generation of GnRH can lead to inadequate production of which hormones?

    <p>LH and FSH</p> Signup and view all the answers

    Which cells does FSH act on in the male gonad regulation axis?

    <p>Sertoli cells</p> Signup and view all the answers

    What is primarily responsible for controlling Leydig cell steroidogenesis of testosterone?

    <p>LH secretion</p> Signup and view all the answers

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