Male Reproductive System Anatomy and Physiology
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Questions and Answers

What is the primary function of the gonads in the male reproductive system?

  • Secretion and transportation of gametes
  • Production of reproductive hormones
  • Production of gametes and androgens (correct)
  • Storage and development of gametes

What is the name of the process by which mature sperm meets mature oocytes?

  • Fertilization (correct)
  • Gametogenesis
  • Androgenesis
  • Spermatogenesis

What is the name of the compartment in the testes where spermatogenesis occurs?

  • Intratubular Compartment (correct)
  • Peritubular Compartment
  • Tunica Albuginea
  • Interstitial Compartment

What is the name of the cells that provide nourishment to developing sperm cells?

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

What is the name of the tube that stores and transports sperm cells?

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

What is the name of the gland that produces a fluid that makes up semen?

<p>Seminal Vesicles (B)</p> Signup and view all the answers

What is the temperature at which the testes function optimally?

<p>2 degrees lower than body temperature (D)</p> Signup and view all the answers

What is the primary function of the acrosome in spermatozoa?

<p>To release lysosome and hydrolytic enzymes for fertilization (B)</p> Signup and view all the answers

What is the average velocity of sperm movement in mm/min?

<p>1 – 4 mm/min (B)</p> Signup and view all the answers

What is the main function of Sertoli cells in the sperm development process?

<p>To guide sperm cells towards the lumen and provide structural support (B)</p> Signup and view all the answers

What is the term for the process of mature sperm release from Sertoli cells into the lumen?

<p>Spermiation (B)</p> Signup and view all the answers

What is the function of the midpiece in sperm cells?

<p>To provide an abundance of mitochondria for energy production (B)</p> Signup and view all the answers

What is the duration of the spermiogenesis process?

<p>5 weeks (D)</p> Signup and view all the answers

What is the purpose of the blood-testis barrier formed by tight junctions between Sertoli cells?

<p>To create an immunologically safe microenvironment for developing sperm (C)</p> Signup and view all the answers

What percentage of semen volume is contributed by the seminal vesicles?

<p>60-70% (D)</p> Signup and view all the answers

What is the primary function of the prostate gland?

<p>To secrete alkaline fluid and liquefy coagulated semen (C)</p> Signup and view all the answers

What is the role of bulbourethral glands?

<p>To secrete mucus-rich secretions for lubrication (A)</p> Signup and view all the answers

What type of epithelium lines the prostate gland?

<p>Pseudostratified or simple columnar epithelium (C)</p> Signup and view all the answers

What is the location of the prostate gland?

<p>At the base of the urinary bladder and surrounding the prostatic urethra (B)</p> Signup and view all the answers

What is the role of semenogelins?

<p>To induce semen coagulation (D)</p> Signup and view all the answers

What is the function of prostate-specific antigen?

<p>To liquefy coagulated semen (C)</p> Signup and view all the answers

What is the typical volume of semen after several days of abstinence?

<p>2.5-3.5 mL (D)</p> Signup and view all the answers

What is the primary control system responsible for erection?

<p>Parasympathetic nervous system (B)</p> Signup and view all the answers

What is the primary function of the lubrication produced by the urethral and bulbourethral glands?

<p>To aid in lubricating during the sexual act (B)</p> Signup and view all the answers

What is the effect of repeated ejaculation on sperm count and semen volume?

<p>It decreases both (D)</p> Signup and view all the answers

What is the role of cavernous engorgement in erection?

<p>It reduces venous drainage in the penis (A)</p> Signup and view all the answers

What is the typical range of sperm cells per milliliter of semen?

<p>75-400 M (B)</p> Signup and view all the answers

What is the primary component of semen responsible for its initial coagulation?

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

What is the relative contribution of male and female sexual organs to lubrication during coitus?

<p>Female organs contribute most (A)</p> Signup and view all the answers

What is the name of the enzyme responsible for converting testosterone into dihydrotestosterone?

<p>5α-reductase (B)</p> Signup and view all the answers

Which of the following is NOT a site of androgen production?

<p>Bone marrow (D)</p> Signup and view all the answers

What is the primary function of 3β-hydroxysteroid dehydrogenase in androgen production?

<p>Conversion of cholesterol into pregnenolone (B)</p> Signup and view all the answers

Which of the following is a secondary sexual characteristic associated with androgens?

<p>Growth of the prostate gland (D)</p> Signup and view all the answers

What is the name of the enzyme responsible for converting androstenedione into testosterone?

<p>17β-hydroxysteroid dehydrogenase type 3 (D)</p> Signup and view all the answers

In which tissue does the enzyme aromatase convert androgens into estrogens?

<p>Adipose tissue (D)</p> Signup and view all the answers

What is the primary role of androgens in fetal development?

<p>Masculinization of the external genitalia (C)</p> Signup and view all the answers

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