PHY-C Male Hormones
17 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main function of gonadotropic hormones LH and FSH in the male reproductive system?

  • Increase testosterone production in Leydig cells
  • Inhibit the expression of steroidogenic enzymes
  • Activate spermatogenesis in Sertoli cells (correct)
  • Decrease receptors for LDL receptors

    • How does testosterone regulate its own secretion in the male reproductive system?

  • Directly inhibits Leydig cell activity
  • Indirectly stimulates LH production (correct)
  • Has no effect on its own secretion
  • Increases GnRH and FSH production

    • Which hormone acts on Leydig cells to increase testosterone production?

  • LH (correct)
  • GH
  • Estrogen
  • FSH

    • What is the general effect of FSH on the male reproductive system over longer periods of time?

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

    Which enzyme is involved in increasing the expression of steroidogenic enzymes in the male reproductive system?

    <p>$3𝛽$ -hydroxysteroid dehydrigenase</p> Signup and view all the answers

    How do gonadotropic hormones LH and FSH differ in their actions within the male reproductive system?

    <p>Only FSH activates spermatogenesis in Sertoli cells</p> Signup and view all the answers

    What is the role of Inhibin in relation to FSH and GnRH?

    <p>Inhibits FSH and GnRH levels</p> Signup and view all the answers

    What is the function of Activin A in the male reproductive system?

    <p>Controls inflammation and fibrosis</p> Signup and view all the answers

    How are low levels of inhibin and high levels of FSH related to infertility?

    <p>High FSH is linked to infertility</p> Signup and view all the answers

    Which hormone is responsible for fine control of the seminiferous epithelium cycle?

    <p>Activin A</p> Signup and view all the answers

    What role does AMH play in the male reproductive system?

    <p>Facilitates spermatogenesis</p> Signup and view all the answers

    Where are significant amounts of estrogens formed in the male reproductive system?

    <p>Liver from testosterone and androstanediol</p> Signup and view all the answers

    Inhibin B exerts a positive feedback mechanism to stimulate FSH production in the anterior pituitary.

    <p>False</p> Signup and view all the answers

    Elevated activin A levels during inflammation and infection may contribute to spermatogenic failure and testicular damage.

    <p>True</p> Signup and view all the answers

    Low levels of inhibin are associated with high FSH levels, which are linked to infertility.

    <p>True</p> Signup and view all the answers

    Estrogens play a vital role in spermiogenesis and are mainly formed by Leydig cells in the testes.

    <p>False</p> Signup and view all the answers

    AMH (antimüllerian hormone) is crucial for the regulation of the Hypothalamic-Pituitary-Gonadal Axis.

    <p>False</p> Signup and view all the answers

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser