Human Reproductive System: Sperm and Oocyte
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Questions and Answers

How many chromosomes do chromosomes in one male gamete and one female gamete combine to form?

  • 92
  • 47
  • 46 (correct)
  • 23

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

  • To regulate the temperature of the testes (correct)
  • To release sperm from the seminiferous tubules
  • To control the blood-testes barrier
  • To produce sperm in the seminiferous tubules

    • What is the covering of the testes called?

  • Tunica albuginea (correct)
  • Tunica vasculosa
  • Tunica adventitia
  • Tunica serosa

    • How many cell types are present in the seminiferous tubules?

    <p>6</p> Signup and view all the answers

    What is the function of Sertoli cells?

    <p>To control sperm production and germ cell survival</p> Signup and view all the answers

    What would happen if the developing germ cell antigens entered the bloodstream?

    <p>An autoimmune response would occur</p> Signup and view all the answers

    What is the process called when the germ cells develop into sperm cells?

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

    How many chromosomes do spermatogonia have?

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

    What is the term for when one or both testes fail to descend into the scrotum before birth?

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

    What is the energy source for the flagellum to move the sperm cell?

    <p>ATP</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 the role of the prostate in semen?

    <p>Add fluid to coagulate the semen</p> Signup and view all the answers

    What is the name of the hormone that regulates testosterone production?

    <p>Gonadotropin releasing hormone (GRH)</p> Signup and view all the answers

    What is the term for the external female reproductive area?

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

    What is the function of the labia minora?

    <p>Protect the urethra and female reproductive system</p> Signup and view all the answers

    What is the structure that comes from the same cells as the glans penis?

    <p>Clitoris</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 decreases</p> Signup and view all the answers

    What is the function of the mammary glands in lactation?

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

    Why does hormonal birth control prevent pregnancy?

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

    What is the typical age range for puberty in females?

    <p>Age 9-11</p> Signup and view all the answers

    What is the role of the Y chromosome in sex determination?

    <p>It is necessary for the development of the male reproductive system</p> Signup and view all the answers

    What is the effect of poor nutrition on puberty in females?

    <p>It accelerates puberty</p> Signup and view all the answers

    What is the function of the natural microorganisms in the vagina?

    <p>To protect from pathogens</p> Signup and view all the answers

    What is the approximate length of the ovarian cycle?

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

    What is the term for the process by which an oocyte develops in the cortex of the ovaries?

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

    What is the fate of the 3 smaller cells that split from the oocyte during meiosis?

    <p>They disintegrate eventually</p> Signup and view all the answers

    What is the source of mitochondrial DNA in the offspring?

    <p>The mother</p> Signup and view all the answers

    What is the term for the death of multiple follicles during the ovarian cycle?

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

    Which hormone triggers the LH surge in the ovarian cycle?

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

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

    <p>To produce a current for the oocyte to travel to the uterus</p> Signup and view all the answers

    What is the term for the phase of the menstrual cycle where the lining is shed?

    <p>Menses phase</p> Signup and view all the answers

    What is the purpose of the fluid in the secretory phase of the menstrual cycle?

    <p>To provide nutrients for the zygote</p> Signup and view all the answers

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