Reproduction Principles of Human Physiology Unit 8 Quiz
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Questions and Answers

What is a feature of some species of mammals related to testicular migration into the scrotal sac?

  • It requires a temperature higher than body temperature
  • It is androgen-dependent (correct)
  • It is associated with male pattern baldness
  • It promotes primary sex characteristics
  • What is the consequence of failure to descend in the testicles?

  • Acne development
  • Increased muscle growth
  • Male pattern baldness
  • Cryptorchidism (correct)
  • Which type of spermatocyte has entered meiosis II?

  • Primary spermatocyte
  • Spermatid
  • Secondary spermatocyte (correct)
  • Spermatogonia
  • What is the primary sex hormone secreted by the testes in males?

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

    Which hormone exhibits negative feedback control of LH/FSH and GnRH in males?

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

    What does the selected follicle release more of in the adult human female?

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

    What is the fate of the first two pairs of kidneys during fetal development?

    <p>They degenerate</p> Signup and view all the answers

    Which duct is retained in females during sex determination?

    <p>Paramesonephric duct</p> Signup and view all the answers

    What does the inner cell mass differentiate into in a mammalian embryo?

    <p>Embryo proper</p> Signup and view all the answers

    Which hormone plays a key role in the initiation of rhythmic uterine contractions during parturition?

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

    What is the main factor that controls the process of parturition?

    <p>'Ripening' of hormones</p> Signup and view all the answers

    What is the first differentiated cell type in a mammalian embryo?

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

    Which gonadal steroid does not typically mediate negative feedback at the hypothalamus and anterior pituitary?

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

    What is the main hormone product of the testes?

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

    Which hormone product of the ovaries is responsible for triggering a 'surge' release of LH/FSH?

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

    What type of hormone is progesterone?

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

    Which hormone is not a product of the ovaries?

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

    What triggers the luteal regression that marks the beginning of the follicular phase?

    <p>The absence of pregnancy</p> Signup and view all the answers

    Which hormone surge causes the selected follicle to grow and secrete estrogen during the follicular phase?

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

    What causes the massive release of gonadotropins during the follicular phase?

    <p>The high levels of estrogen</p> Signup and view all the answers

    What happens to the somatic cells of the ovulatory follicle after the LH surge?

    <p>They transform into luteal cells</p> Signup and view all the answers

    What causes the endometrial lining to be shed during the follicular phase?

    <p>The low levels of progesterone</p> Signup and view all the answers

    What does the uterus prepare for under the influence of progesterone and estrogen during the luteal phase?

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

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