Human Reproductive System and Gamete Development
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Questions and Answers

How many chromosomes do male and female gametes have together for proper development?

  • 47
  • 23
  • 46 (correct)
  • 49

    • What is the function of the dartos and cremaster muscles in the scrotum?

  • To release sperm from the testes
  • To regulate the temperature of the testes (correct)
  • To produce sperm
  • To separate the testes into lobules

    • What is the purpose of the blood-testes barrier created by Sertoli cells?

  • To keep blood borne substances away from the germ cells (correct)
  • To release sperm from the testes
  • To control the development of sperm
  • To regulate the temperature of the testes

    • How many lobules are there in each testis?

    <p>300-400</p> Signup and view all the answers

    What is the role of Sertoli cells in the seminiferous tubules?

    <p>To control the development of sperm</p> Signup and view all the answers

    What is the function of the seminiferous tubules?

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

    What is the process called that develops a sperm cell from the least mature stage to the final stage?

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

    Where is the end product of sperm formed during spermatogenesis?

    <p>Near the lumen</p> Signup and view all the answers

    How many chromosomes do spermatogonia cells have?

    <p>46</p> Signup and view all the answers

    What is the term for one or both testes failing to descend into the scrotum prior to birth?

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

    What is the percentage of semen that is made up of sperm?

    <p>5%</p> Signup and view all the answers

    What is responsible for powering the flagellum to move the sperm cell?

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

    Where do sperm cells continue to mature after they are formed?

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

    What is the hormone that is released to differentiate the male sexual reproductive organs as a fetus?

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

    What is the negative feedback loop that regulates testosterone production?

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

    What is the name of the membrane that covers the vaginal canal and always lets fluid flow out?

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

    What happens to the corpus luteum if pregnancy does not occur within 10-12 days?

    <p>It degrades and progesterone levels decrease</p> Signup and view all the answers

    What is the relationship between breast size and milk production?

    <p>Breast size does not affect milk production</p> Signup and view all the answers

    How does hormonal birth control work to prevent pregnancy?

    <p>By supplying a constant amount of estrogen and progesterone</p> Signup and view all the answers

    What is the fundamental sex in humans?

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

    What triggers the onset of puberty in humans?

    <p>The increase in hypothalamic production of hormones</p> Signup and view all the answers

    What is a common effect of poor nutrition on puberty in females?

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

    What is the primary function of the vagina?

    <p>To act as the entrance to the reproductive tract and the exit during natural childbirth</p> Signup and view all the answers

    What is the typical duration of an ovarian cycle?

    <p>28 days</p> Signup and view all the answers

    What is the term for the death of follicles during folliculogenesis?

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

    What is the primary function of the corpus luteum?

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

    What is the term for the release of an oocyte from the ovary?

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

    What is the purpose of the cilia in the uterine tubes?

    <p>To push the oocyte along the tube</p> Signup and view all the answers

    What is the term for the layer of the uterus that is shed during menstruation?

    <p>Functional layer</p> Signup and view all the answers

    What is the primary hormone responsible for the growth and development of follicles?

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

    What is the term for the fertilized egg that has not yet implanted in the uterus?

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

    What is the purpose of the high levels of glucose in the uterine fluid?

    <p>To support the growth of the embryo</p> Signup and view all the answers

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