Male Reproductive System Anatomy and Physiology

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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?

Sertoli cells Signup and view all the answers

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

Epididymis Signup and view all the answers

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

Seminal Vesicles Signup and view all the answers

What is the temperature at which the testes function optimally?

2 degrees lower than body temperature Signup and view all the answers

What is the primary function of the acrosome in spermatozoa?

To release lysosome and hydrolytic enzymes for fertilization Signup and view all the answers

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

1 – 4 mm/min Signup and view all the answers

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

To guide sperm cells towards the lumen and provide structural support Signup and view all the answers

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

Spermiation Signup and view all the answers

What is the function of the midpiece in sperm cells?

To provide an abundance of mitochondria for energy production Signup and view all the answers

What is the duration of the spermiogenesis process?

5 weeks Signup and view all the answers

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

To create an immunologically safe microenvironment for developing sperm Signup and view all the answers

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

60-70% Signup and view all the answers

What is the primary function of the prostate gland?

To secrete alkaline fluid and liquefy coagulated semen Signup and view all the answers

What is the role of bulbourethral glands?

To secrete mucus-rich secretions for lubrication Signup and view all the answers

What type of epithelium lines the prostate gland?

Pseudostratified or simple columnar epithelium Signup and view all the answers

What is the location of the prostate gland?

At the base of the urinary bladder and surrounding the prostatic urethra Signup and view all the answers

What is the role of semenogelins?

To induce semen coagulation Signup and view all the answers

What is the function of prostate-specific antigen?

To liquefy coagulated semen Signup and view all the answers

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

2.5-3.5 mL Signup and view all the answers

What is the primary control system responsible for erection?

Parasympathetic nervous system Signup and view all the answers

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

To aid in lubricating during the sexual act Signup and view all the answers

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

It decreases both Signup and view all the answers

What is the role of cavernous engorgement in erection?

It reduces venous drainage in the penis Signup and view all the answers

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

75-400 M Signup and view all the answers

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

Semenogelins Signup and view all the answers

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

Female organs contribute most Signup and view all the answers

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

5α-reductase Signup and view all the answers

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

Bone marrow Signup and view all the answers

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

Conversion of cholesterol into pregnenolone Signup and view all the answers

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

Growth of the prostate gland Signup and view all the answers

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

17β-hydroxysteroid dehydrogenase type 3 Signup and view all the answers

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

Adipose tissue Signup and view all the answers

What is the primary role of androgens in fetal development?

Masculinization of the external genitalia Signup and view all the answers