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L14 MCQ Male Reproduction
50 Questions
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L14 MCQ Male Reproduction

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Questions and Answers

Which process involves the production of mature spermatozoa?

  • Fertilisation
  • Embryo Development
  • Gametogenesis (correct)
  • Implantation

    • What is the main hormone produced by Leydig cells in the testes?

  • Testosterone (correct)
  • Growth Hormone
  • Progesterone
  • Estrogen

    • Which cells are responsible for the production of spermatozoa in the testes?

  • Seminiferous tubules (correct)
  • Connective tissue cells
  • Epithelial cells
  • Interstitial cells of Leydig

    • What is the term for the process of transforming spermatids into spermatozoa?

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

    Which phase of spermiogenesis involves the formation of acrosomal granules?

    <p>Acrosomal granules</p> Signup and view all the answers

    What is the function of Leydig cells in the testes?

    <p>Production of testosterone</p> Signup and view all the answers

    What is the term for the process of sperm release from the seminiferous tubules?

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

    What is the structure that contains 1-4 seminiferous tubules?

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

    What is the main function of the seminiferous tubules in the testes?

    <p>Production of mature spermatozoa</p> Signup and view all the answers

    What is the term for the process of implantation of the embryo?

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

    Which cells are responsible for nourishing the seminiferous tubule cells and transporting nutrients to the lumen region?

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

    What is the temperature required for normal sperm production?

    <p>2-3°C below core body temperature</p> Signup and view all the answers

    Which part of the sperm contains enzymes that facilitate sperm penetration?

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

    Which hormone is responsible for maintaining testosterone levels in the seminiferous tubules?

    <p>Androgen Binding Protein</p> Signup and view all the answers

    What is the function of the flagellum in sperm?

    <p>Facilitate sperm movement</p> Signup and view all the answers

    Which cells synthesize androgens in the testes?

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

    What is the function of the plasma membrane in sperm?

    <p>Surrounds the entire tail</p> Signup and view all the answers

    Which hormone stimulates FSH in the modulation of spermatogenesis?

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

    What is the main function of Sertoli cells in the seminiferous tubules?

    <p>Nourishment of tubule cells and transport of nutrients</p> Signup and view all the answers

    What is the function of the midpiece in sperm?

    <p>Energy production for motility</p> Signup and view all the answers

    Which of the following is a risk factor for erectile dysfunction?

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

    Which type of sperm motility is classified as non-progressive?

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

    What is the physiological basis of penile erection?

    <p>All of the above</p> Signup and view all the answers

    Which specialized semen test is used to evaluate specific aspects of sperm function?

    <p>Sperm Chromatin Dispersion (SCD)</p> Signup and view all the answers

    Which hormone is responsible for the maintenance of testosterone levels in the seminiferous tubules?

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

    What is the main risk factor for erectile dysfunction?

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

    Which process involves the propulsion of semen from the urethra?

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

    What is the function of Viagra in the treatment of erectile dysfunction?

    <p>Inhibits PDE5 to prolong cGMP action</p> Signup and view all the answers

    Which accessory glands contract peristaltically during ejaculation?

    <p>Reproductive ducts</p> Signup and view all the answers

    What is the main function of Sertoli cells in the seminiferous tubules?

    <p>Nourishing and supporting sperm cells</p> Signup and view all the answers

    Which of the following is NOT a component of seminal plasma?

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

    What is the marker for seminal vesicle function?

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

    Which of the following is NOT a function of ascorbic acid in semen?

    <p>Inhibition of motility</p> Signup and view all the answers

    Which marker is associated with epididymal function and may reflect partial obstruction of the epididymis?

    <p>Neutral α-Glucosidase</p> Signup and view all the answers

    Which of the following is NOT a component of prostate secretions in semen?

    <p>Prostatic specific acid phosphatase (PSAP)</p> Signup and view all the answers

    What is the normal pH range of semen?

    <p>7.2-8.0</p> Signup and view all the answers

    Which of the following is a semen parameter used to assess male fertility?

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

    What is the term for the absence of spermatozoa in semen?

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

    What is the term for the presence of blood in semen?

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

    What is the term for the presence of white blood cells in semen?

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

    Which molecule along the MPF activation pathway would be targeted to prevent oocyte maturation and ovulation?

    <p>Mitogen-activated protein kinase (MAPK)</p> Signup and view all the answers

    What is the function of anti-Mullerian hormone (AMH)?

    <p>Induces regression of Müllerian ducts</p> Signup and view all the answers

    What is the diagnostic workup for male factor infertility?

    <p>Performing a semen analysis</p> Signup and view all the answers

    Which cells produce anti-Mullerian hormone (AMH) in males?

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

    What is the main function of anti-Mullerian hormone (AMH) in females?

    <p>Stimulates follicular recruitment and growth</p> Signup and view all the answers

    What is the clinical use of serum AMH levels?

    <p>Predicting hormonal treatment response in IVF</p> Signup and view all the answers

    When are serum AMH levels highest in females?

    <p>During puberty</p> Signup and view all the answers

    What does the inhibition of MPF activation potentially offer as a target for contraception?

    <p>Prevention of oocyte maturation and ovulation</p> Signup and view all the answers

    What does the specificity of Meiosis to gamete production mean for contraception?

    <p>Increased target options for contraception</p> Signup and view all the answers

    What is the main target for developing contraceptives based on the control of Meiosis?

    <p>Maturation-promoting factor (MPF)</p> Signup and view all the answers

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