chapter 27, 28 quiz

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1

Which of the following hormones controls the release of anterior pituitary gonadotropins?

GnRH

2

The structures that receive the ovulated oocyte, providing a site for fertilization, are called:

the fallopian tubes

3

Fertilization generally occurs in the

fallopian tubes.

4

characteristics of the mature sperm include

he presence of Y chromosomes in approximately half the sperm.

5

The cells that produce testosterone in the testis are called:

interstitial cells

6

Select the correct statement about the uterine cycle

If fertilization occurs, the corpus luteum is maintained by a hormone secreted by the developing embryo.

7

Occasionally three polar bodies are found clinging to the mature ovum. One came from an unequal division of the ovum, but from where did the other two arise?

The first polar body has also divided to produce two polar bodies.

8

Spermatogenesis

involves a kind of cell division limited to the gametes.

9

Which of the following statements about the female reproductive process is not true

Rebuilding the endometrium is under the control of prolactin

10

The organ that makes estrogen and progesterone is the:

ovary.These are the primary sex organs of the female.

11

What is the most common sexually transmitted disease in the U.S.?

Chlamydia

12

Sperm are produced in the ____________________.

seminiferous tubules.

13

It is impossible for sperm to be functional (able to fertilize the egg) until after:

they undergo capacitation.

14

The placenta, a vitally important metabolic organ, is made up of a contribution from mother and fetus. Which portion is from the fetus?

chorion

15

Implantation involves:

embedding of the blastula in the uterine wall.

16

Hormones concerned with events of lactation include:

oxytocin.

17

Cleavage as part of embryonic development is distinctive because it involves:

cell division by mitosis with little or no growth between successive divisions.

18

An implantation that takes place in a site other than the uterus is called ____________________.

ectopic.

19

What is the function of the hormone hCG (human chorionic gonadotropin)

It signals the corpus luteum to continue producing estrogen and progesterone to maintain the pregnancy.