Male Reproductive System Quiz
20 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

Which cells in the testes are primarily responsible for the production of testosterone?

  • Leydig cells (correct)
  • Sertoli cells
  • Myoid cells
  • Spermatogonia
  • What hormone stimulates the Leydig cells to secrete testosterone?

  • Follicle-stimulating hormone (FSH)
  • Luteinizing hormone (LH) (correct)
  • Prolactin
  • Gonadotropin-releasing hormone (GnRH)
  • Spermatogenesis occurs in which part of the male reproductive system?

  • Vas deferens
  • Prostate gland
  • Seminiferous tubules (correct)
  • Epididymis
  • Which hormone directly stimulates spermatogenesis by acting on the Sertoli cells?

    <p>Follicle-stimulating hormone (FSH) (A)</p> Signup and view all the answers

    What is the function of inhibin, secreted by Sertoli cells, in the male reproductive system?

    <p>Inhibits FSH release (A)</p> Signup and view all the answers

    Which of the following structures is the primary site of sperm maturation?

    <p>Epididymis (C)</p> Signup and view all the answers

    Which enzyme is responsible for converting testosterone to dihydrotestosterone (DHT), the more potent form of testosterone?

    <p>5-alpha reductase (C)</p> Signup and view all the answers

    What role does androgen-binding protein (ABP), produced by Sertoli cells, play in spermatogenesis?

    <p>Binds testosterone to maintain high local concentrations in the seminiferous tubules (D)</p> Signup and view all the answers

    What is the role of the blood-testis barrier formed by Sertoli cells?

    <p>To protect developing sperm cells from the immune system (B)</p> Signup and view all the answers

    During ejaculation, sperm are propelled from the epididymis into which structure?

    <p>Vas deferens (D)</p> Signup and view all the answers

    Which hormone is primarily responsible for the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the anterior pituitary?

    <p>Gonadotropin-releasing hormone (GnRH) (D)</p> Signup and view all the answers

    In which part of the sperm cell does the acrosome reaction take place, which is vital for fertilization?

    <p>Head (C)</p> Signup and view all the answers

    Which gland produces a fluid that provides fructose, serving as an energy source for sperm?

    <p>Seminal vesicles (A)</p> Signup and view all the answers

    What neurotransmitter is chiefly involved in causing vasodilation to initiate an erection of the penis?

    <p>Nitric oxide (A)</p> Signup and view all the answers

    Which anterior pituitary hormone indirectly supports spermatogenesis by maintaining the male reproductive tract?

    <p>Follicle-stimulating hormone (FSH) (D)</p> Signup and view all the answers

    Which hormone serves as a signal for initiating the process of spermatogenesis in males?

    <p>Follicle-stimulating hormone (FSH) (D)</p> Signup and view all the answers

    The secretion of which substance by the seminal vesicles enhances sperm motility by providing energy?

    <p>Fructose (A)</p> Signup and view all the answers

    Which of the following is NOT a function of nitric oxide in the male reproductive system?

    <p>Stimulating hormone production (C)</p> Signup and view all the answers

    What is the primary action of Gonadotropin-releasing hormone (GnRH) in the male reproductive system?

    <p>Stimulating the release of FSH and LH (D)</p> Signup and view all the answers

    Which component is primarily responsible for the energy supply during the movement of sperm toward the egg?

    <p>Fructose from seminal vesicles (D)</p> Signup and view all the answers

    Study Notes

    Male Reproductive System

    • Leydig cells are responsible for producing testosterone in the testes.
    • Luteinizing hormone (LH) stimulates Leydig cells to secrete testosterone.
    • Spermatogenesis, the process of sperm production, occurs within the seminiferous tubules of the testes.
    • Follicle-stimulating hormone (FSH) directly stimulates spermatogenesis by acting on Sertoli cells.
    • Sertoli cells also produce inhibin, a hormone that inhibits the release of FSH, thus regulating spermatogenesis.
    • Mature sperm cells are primarily stored and further matured within the epididymis.
    • 5-alpha reductase is the enzyme responsible for converting testosterone to dihydrotestosterone (DHT).
    • Androgen-binding protein (ABP) produced by Sertoli cells binds testosterone to maintain high local concentrations within the seminiferous tubules, supporting spermatogenesis.
    • The blood-testis barrier, formed by Sertoli cells, safeguards developing sperm cells from the immune system.
    • During ejaculation, sperm are propelled from the epididymis through the vas deferens.
    • Gonadotropin-releasing hormone (GnRH), released from the hypothalamus, regulates the release of FSH and LH from the anterior pituitary.
    • The acrosome, a cap-like structure on the head of the sperm cell, contains enzymes that aid in fertilization.
    • The seminal vesicles contribute fructose, an energy source for sperm, to the seminal fluid.
    • Nitric oxide plays a crucial role in penile erection by inducing vasodilation.
    • Follicle-stimulating hormone (FSH) helps maintain the male reproductive tract by supporting spermatogenesis.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge on the male reproductive system, focusing on key components like Leydig cells, Sertoli cells, and the hormonal regulation of spermatogenesis. This quiz covers the roles of various hormones and processes involved in sperm production and maturation.

    More Like This

    Male Reproductive System Quiz
    10 questions
    Male Reproductive System Quiz
    40 questions
    Use Quizgecko on...
    Browser
    Browser