Male Reproductive System Anatomy and Function Quiz
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Questions and Answers

Where are the primary sex organs (gonads) located in males?

  • Prostate gland
  • Seminal vesicles
  • Epididymis
  • Testes (correct)

    • What is the function of the accessory sex glands in the male reproductive system?

  • To control sexual behavior and drives
  • To empty their secretions into the ducts during ejaculation (correct)
  • To produce and store sperm
  • To regulate hormone production

    • Which hormone is predominantly responsible for male sexual characteristics and behaviors?

  • Androgens (correct)
  • Testosterone
  • Progesterone
  • Estrogens

    • Where are sperm produced and stored before ejaculation?

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

    What is the primary function of the male gonads (testes)?

    <p>To produce sperm</p> Signup and view all the answers

    Which part of the male reproductive system delivers sperm to the exterior?

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

    What is the role of sex hormones in the male reproductive system?

    <p>Development and function of reproductive organs</p> Signup and view all the answers

    What keeps the testes 3 C lower than core body temperature?

    <p>External positioning of the scrotum</p> Signup and view all the answers

    What surrounds the seminiferous tubules and produces androgens?

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

    What structure conveys sperm to the rete testis?

    <p>Tubulus rectus</p> Signup and view all the answers

    What is the primary function of the efferent ductules?

    <p>Convey sperm out of the testis</p> Signup and view all the answers

    What is the cuff of skin covering the distal end of the penis called?

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

    What is the primary function of the corpus spongiosum?

    <p>Surrounds the urethra and expands to form the glans and bulb of the penis</p> Signup and view all the answers

    From where do the testicular arteries branch and supply the testes?

    <p>Abdominal aorta</p> Signup and view all the answers

    What is the role of sustentacular cells in spermatogenesis?

    <p>Deliver nutrients to dividing cells and move them along to the lumen</p> Signup and view all the answers

    What is the function of the acrosome in sperm?

    <p>Contains hydrolytic enzymes that allow the sperm to penetrate and enter the egg</p> Signup and view all the answers

    Which cells maintain the germ line in the seminiferous tubules?

    <p>Type A spermatogonia</p> Signup and view all the answers

    What is the role of androgen-binding protein (ABP) in spermatogenesis?

    <p>Enhances spermatogenesis by binding testosterone</p> Signup and view all the answers

    What is the function of the blood-testis barrier?

    <p>Prevents sperm antigens from escaping into the blood</p> Signup and view all the answers

    What stimulates the release of FSH and LH from the anterior pituitary gland?

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

    What is the role of testosterone in the male reproductive system?

    <p>Targets all accessory organs and induces male secondary sex characteristics</p> Signup and view all the answers

    What is the function of the midpiece in sperm?

    <p>Contains mitochondria for energy production</p> Signup and view all the answers

    What is the source of estrogen for neurons in the male reproductive system?

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

    Where does nonmotile sperm enter and become motile?

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

    What is the function of the bulbourethral glands?

    <p>Produce mucus to neutralize acidic urine in the urethra</p> Signup and view all the answers

    Which gland secretes slightly acidic fluid and accounts for one-third of semen volume?

    <p>Prostate gland</p> Signup and view all the answers

    What initiates erection by sexual stimuli?

    <p>Release of nitric oxide</p> Signup and view all the answers

    What is the process of sperm production involving meiosis and genetic variability?

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

    Which part of the male reproductive system is cut in vasectomy?

    <p>Ductus deferens</p> Signup and view all the answers

    What does semen contain to facilitate sperm movement?

    <p>Accessory gland secretions</p> Signup and view all the answers

    Meiosis forms spermatids from spermatocytes

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

    Spermatids are haploid but nonmotile late in spermatogenesis

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

    Sustentacular cells form a blood-testis barrier to prevent sperm antigens from escaping into the blood

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

    Sustentacular cells deliver nutrients to dividing cells and secrete testicular fluid to provide the transport medium for sperm

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

    The hypothalamus releases luteinizing hormone (LH) to stimulate interstitial cells to release testosterone

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

    Testosterone is synthesized from cholesterol and must be transformed into dihydrotestosterone (DHT) before it can bind within the nucleus

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

    The male secondary sex characteristics induced by testosterone include enhanced growth of the chest and deepening of the voice

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

    The ovaries are the primary female reproductive organs that make female gametes (ova) and secrete female sex hormones

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

    The accessory ducts in the female reproductive system include uterine tubes, uterus, and vagina

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

    The external genitalia in the female reproductive system are referred to as the external sex organs

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

    Study Notes

    Male Reproductive System Anatomy and Function

    • Epididymis is the site where nonmotile sperm enter and become motile
    • Ductus deferens, from the epididymis to the urethra, is cut in vasectomy
    • Urethra conveys both urine and semen and consists of three regions
    • Seminal vesicles secrete 60% of semen volume, containing fructose and prostaglandins
    • Prostate gland secretes slightly acidic fluid and accounts for one-third of semen volume
    • Bulbourethral glands produce mucus to neutralize acidic urine in the urethra
    • Semen contains sperm and accessory gland secretions, facilitating sperm movement
    • Semen also contains prostaglandins, relaxin, and seminalplasmin
    • Semen coagulates after ejaculation and then liquefies
    • Erection is initiated by sexual stimuli and involves the release of nitric oxide
    • Ejaculation is a sympathetic nerve-driven process that empties reproductive ducts and prevents urine expulsion
    • Spermatogenesis is the process of sperm production involving meiosis and genetic variability

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    Related Documents

    Male Reproductive System.pptx

    Description

    Test your knowledge of the male reproductive system's anatomy and function with this quiz. From the epididymis to the urethra, explore the key structures, secretions, and processes involved in sperm production, ejaculation, and semen composition.

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