Week 11 Reproductive

Question 1

A sample of a woman’s blood is analyzed for reproductive hormone levels. The results indicate a high level of progesterone, relatively high levels of inhibin, and low levels of FSH and LH. The female is most likely experiencing ________ of the uterine cycle.

Answer 1

the secretory phase.

Question 2

A mature follicle releases an ovum in response to a surge in;

Answer 2

luteinizing hormone.

Question 3

The special type of cell division required to produce gametes is called

Answer 3

meiosis.

Question 4

The ________ is the glycoprotein-rich region between the developing oocyte and the granulosa cells.

Answer 4

zona pellucida.

Question 5

Which of the following does not occur after menopause?

Answer 5

Estrogen levels rise.

Question 6

Which of the following is not a similarity between the testis and ovary?

Answer 6

Both produce progesterone.

Question 7

Which of the following hormones is the primary stimulant of milk production?

Answer 7

prolactin.

Question 8

The cells that are formed during spermatogenesis by the first meiosis are called

Answer 8

secondary spermatocytes.

Question 9

The formation of a tetrad of maternal and paternal chromosomes during spermatogenesis is called;

Answer 9

synapsis.

Question 10

The organ that surrounds the urethra and produces an alkaline secretion is the

Answer 10

prostate gland

Question 11

Which of the following is the function of the ovaries?
Answers:
a.
secretion of hormones.

b.
production of oocytes.

c.
All of the answers are correct.

d.
formation of immature gametes.

e.
secretion of inhibin.

Answer 11

c.

All of the answers are correct.

Question 12

Which of the following statements concerning oogenesis is false?
Answers:
a.
An ovum completes its last meiosis after it is fertilized.

b.
About half the oogonia complete mitosis between birth and puberty.

c.
Oogenesis begins before birth.

d.
Ova develop from stem cells called oogonia.

Answer 12

b.

About half the oogonia complete mitosis between birth and puberty.

Question 13

After ovulation, the ovary secretes;

Answer 13

both estrogen and progesterone.

Question 14

The granulosa cells of developing follicles secrete;

Answer 14

estradiol.

Question 15

Primary spermatocytes are produced by mitosis of cells called;

Answer 15

spermatogonia.

Question 16

The uterine phase that develops because of a fall in progesterone levels is the

Answer 16

menses.

Question 17

The role of FSH in males is to;

Answer 17

initiate sperm production in the testes.

Question 18

Human chorionic gonadotropin (hCG);

Answer 18

is secreted by the developing placenta and can be detected in the urine <16 weeks gestation.

Question 19

During the proliferative phase of the menstrual cycle, the;

Answer 19

functional zone of the endometrium is restored.

Question 20

The small paired structures at the base of the penis that secrete a thick, alkaline mucus are the;

Answer 20

bulbo-urethral glands.

Question 21

Which of the following best describes the follicular phase of the ovarian cycle?
Answers:
a.
during the follicular phase the corpus luteum develops due to increasing levels of oestrogen.

b.
during the follicular phase the dominant follicle develops due to increasing levels of oestrogen.

c.
during the follicular phase the dominant follicle develops due to increasing levels of testosterone.

d.
during the follicular phase the corpus luteum develops due to increasing levels of progesterone.

Answer 21

b.

during the follicular phase the dominant follicle develops due to increasing levels of oestrogen.

Question 22

Oxytocin is secreted by;

Answer 22

the fetal and maternal hypothalamus.

Question 23

Which of the following statements about oogenesis is false?
Answers:
a.
The polar body is the egg cell which is then fertilized by the sperm cell.

b.
Meiosis II is not completed until after the egg cell makes contact with the sperm cell.

c.
Far fewer eggs are produced by the female than sperm produced by the male.

d.
Meiosis I begins in the female fetus.

Answer 23

a.

The polar body is the egg cell which is then fertilized by the sperm cell.

Question 24

The most important androgen is;

Answer 24

testosterone.

Question 25

Which of the following hormones is responsible for maintaining pregnancy?

Answer 25

human Chorionic Gonadotropin (hCG), progesterone and oestrogen

Question 26

The pituitary hormone that stimulates the interstitial cells to secrete testosterone is;

Answer 26

luteinizing hormone, LH.

Question 27

The ________ consists of the follicle cells that cling to the oocyte after ovulation.

Answer 27

corona radiata.

Question 28

The segment of the uterine tube where fertilization commonly occurs is the

Answer 28

outer one-third of the tube.

Question 29

Following fertilisation, the zygote develops into a blastocyst that implants in the

Answer 29

endometrium.

Question 30

The formation of a tetrad of maternal and paternal chromosomes during spermatogenesis is called;

Answer 30

synapsis.

Question 31

Menstruation is triggered by a drop in the levels of;

Answer 31

progesterone.

Question 32

During the secretory phase of the menstrual cycle,

the fertilized ovum implants.

b.
All of the answers are correct.

c.
the corpus luteum is formed.

d.
endometrial glands enlarge.

e.
progesterone levels are high.

Answer 32

All of the answers are correct.

Question 33

The ________ of a sperm contains the enzymes essential for fertilization.

Answer 33

b.

acrosome.

Question 34

The cells that are formed during spermatogenesis by the first meiosis are called

Answer 34

c.

secondary spermatocytes.

Question 35

The organ that surrounds the urethra and produces an alkaline secretion is the

Answer 35

d.

prostate gland

Question 36

After menopause, the production of two pituitary hormones increases. One of these is;

Answer 36

b.

luteinizing hormone, LH

Question 37

Which of the following best describes the process by which male and female gametes are produced, and their correct chromosome number?

Answer 37

meiosis, 23 chromosomes (haploid).

Question 38

The principal hormone secreted by the corpus luteum is;

Answer 38

progesterone

Question 39

The uterine phase that develops because of a fall in progesterone levels is the

Answer 39

menses.

Question 40

Which of the following is not an action of estrogen?

Answer 40

mimics the symptoms of menopause.

Question 41

The organ that produces a secretion that contains fructose, prostaglandins, and fibrinogen is the,

Answer 41

seminal gland (seminal vesicle).