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DR. JONES ENDO EXAM 3

Total questions: 57

Worksheet time: 2hrs 54mins

Name
Class
Date
1.

Which of the following statements is true regarding the corpus luteum?

a)

The corpus luteum is derived from the corpus albican

b)

Both granulosa lutein cells and Leydig cells are present

c)

Cells within the corpus luteum express a high number of LH receptors

d)

It produces only one class of steroid, progestins

2.

In humans, fertilization usually occurs in the

a)

Vagina

b)

Cervix

c)

Uterine cavity

d)

Uterine tubes

3.

Inhibition of luteinizing hormone secretion would inhibit testosterone synthesis

a)

True

b)

False

4.

Progesterone is secreted primarily from the corpus luteum

a)

True

b)

False

5.

The human female determines the sex of her offspring

a)

True

b)

False

6.

Deletion of the SRY gene would cause male fetuses to develop as females

a)

True

b)

False

7.

Dihydrotestosterone is produced by the action of the enzyme 5 alpha-reductase on testosterone. 

a)

True

b)

False

8.

The rate at which GnRH is secreted from the hypothalamus determines whether LH or FSH is secreted from the anterior pituitary

a)

True

b)

False

9.

Inhibin prevents release of LH from the anterior pituitary

a)

True

b)

False

10.

Sertoli cells are stimulated by __________, while Leydig cells are stimulated by ________. 

a)

FSH, LH

b)

LH, FSH

c)

TESTOSTERONE, LH

d)

FSH, TESTOSTERONE

11.

Secretion of LH is inhibited by 

a)

high concentrations of inhibin.

b)

rapidly rising concentrations of estradiol.

c)

high concentrations of testosterone.

d)

decreasing concentrations of progesterone.

12.

A follicle that does not complete development as a graafian follicle will 

a)

rest until the next month.

b)

continue meiosis.

c)

become a primordial follicle.

d)

undergo follicle atresia

13.

What is it called when a mature follicle ruptures and ejects the oocyte into the uterine tube? 

a)

gestation

b)

menstruation

c)

ovulation

d)

fertilization

14.

What hormone triggers ovulation? 

a)

LH

b)

FSHC

c)

progesterone

d)

hCG

15.

The ___________ phase of the endometrium is supported when the ovary is in the luteal phase. 

a)

proliferative

b)

secretory

c)

menstrual

d)

ovulatory

16.

In the female menstrual cycle 

a)

ovulation is stimulated by decreasing concentrations of progesterone.

b)

menstruation occurs during the last four days of the cycle.

c)

progesterone secretion is stimulated by LH.

d)

the luteal phase is characterized by high circulating concentrations of estrogens.

17.

What is the major hormone produced during the luteal phase? 

a)

progesterone

b)

estrogen

c)

androgen

d)

hCG

18.

The LH surge is caused by a ______ feedback effect of increased estradiol. 

a)

positive

b)

negative

19.

High progesterone levels during the luteal phase 

a)

causes cervical mucus to thicken.

b)

suppresses FSH and LH.

c)

causes thickening of the endometrium.

20.

The secretion of gonadotropins (FSH and LH) will ___________ during menopause. 

a)

increase

b)

decrease

c)

remain the same

21.

During which day of the female cycle are estrodiol levels higher and higher than progesterone levels?

a)

17

b)

11

c)

0

d)

23

22.

Which cells of the female gonad are most responsive to FSH (follicle stimulating hormone)?

a)

Granulosa

b)

Leydig

c)

Theca

d)

Sertoli

23.

Anterior pituitary hormone which primarly regulates granulosa cells

a)

Follicle stimulating hormone (FSH)

b)

Luteinizing Hormone

c)

GnRH

d)

Estrogen

24.

Stimulates the theca cells

a)

Luteinizing hormone (LH)

b)

GnRH

c)

Estrogen

d)

Progesterone

25.

Stimulates the release of LH during the beginning of the follicular phase of the ovarian cycle

a)

GnRH

b)

Estrogen

c)

Progesterone

d)

INhibin

26.

Causes the proliferative phase of the mesntrual cycle

a)

Estrogen

b)

Progesteron

c)

INhibin

d)

GnRH

27.

Decrease uterine contractions

a)

Progesterone

b)

Inhibin

c)

Estrogen

d)

LH

28.

Hormone which specifically inhibits FSH release

a)

Inhibin

b)

Follicle stimulating hormone (FSH)

c)

Estrogen

d)

Progesterone

29.

In which part does fertilization occurs?

a)

A

b)

B

c)

C

d)

D

30.

Which part is the cervix?

a)

A

b)

B

c)

C

d)

D

31.

Which part is the myometrium?

a)

A

b)

B

c)

C

d)

D

32.

Which part is the Granulosa cells?

a)

A

b)

B

c)

C

d)

D

33.

female gonads, produce eggs much less and infrequent then males

a)

Ovaries

b)

uterine tubes

c)

vagina

d)

uterus

34.

flares at infundibulum, wall contains smooth muscle and cilia to move eggs along

a)

Fallopian tubes

b)

ovaries

c)

vagina

d)

cervix

35.

receptacle for penis, squamous epithelial cells after puberty, distensible

a)

vagina

b)

cervix

c)

fallopian tubes

d)

uterus

36.

thick smooth muscle chamber

•   Harbor and provide nutrition for developing fetus

•   Fundus (superior), Body , Cervix (inferior) – regions

a)

Uterus

b)

fallopian tubes

c)

cervix

d)

ovaries

37.

bundles of smooth muscle fibers, produce labor contractions and expel fetus

a)

Myometrium

b)

Endometrium

38.

Inner lining of uterus, epithelium

a)

Myometrium

b)

Endometrium

39.

secrete androgens/estrogen

a)

Theca

b)

Granulosa

c)

Follicular fluid

40.

make estrogens from androgens, secretes inhibin

a)

Granulosa

b)

Theca

c)

Follicular fluid

41.

Pap smear are cells of the cervix are scraped and assayed for dysplasia

a)

True

b)

False

42.

Human Papilloma Virus (HPV) is sexually transmitted pathogen causes cervical cancer and genital warts, men and women

a)

True

b)

False

43.

The Gardasil vaccine protects against ____ different types of viruses and the Cervaix vaccine protects against ____ different types of viruses.

a)

4 , 2

b)

2 , 4

c)

3 , 4

d)

4 , 1

44.

GnRH leads to estrogen release from ovary in :

a)

Puberty

b)

Adulthood

45.

Which of the following is true about estrogen?

a)

Stimulates growth of the follicle

b)

External genitalia growth and feminization

c)

Duct growth in the breast

d)

Stimulates bone growth, and growth plate closure

e)

Increases salt and water retention (Angiotensiogen)

46.

Which of the following is true about progesterone?

a)

Stimulates breast development: lobules and alveoli

b)

Prepares uterus for implantation

c)

Cervical mucous secretions

d)

Decreases myometrium contractions

e)

Increases body temperature

47.

extends from menstruation to ovulation (days 1-14)

a)

Follicular phase

b)

Luteal phase

48.

phase between 15-28 days.

a)

Luteal phase

b)

Follicular phase

49.

Phase between 5-15 days.

1.Estrogens from follicle stimulate growth of blood vessels and muscle layer

2.Expression of progesterone receptors on endometrial cells increases

3.Increased thickness of uterine wall

a)

Proliferative phase

b)

Secretory phase

c)

Menstrual phase

50.

Phase between 15-28 days, after ovulation.

1.Secretion of glycogen by endometrial glands due to progesterone stimulation

2.Increased thickness further

3.High nutrition if fertilization occurs

a)

Proliferative phase

b)

Secretory phase

c)

Menstrual phase

51.

Phase between 1-5 days.

1.Discharge of menstrual fluid

2.Degeneration of endometrial lining due to loss of hormones from the corpus luteum

3.Ischemia (loss of blood vessels)

a)

Menstrual phase

b)

Secretory phase

c)

Proliferative phase

52.

Prolactin injections may be used to induce labor

a)

True

b)

False

53.

What is the function of prolactin in females? 

a)

stimulates milk production in the mammary glands

b)

regulates the gonadotropins

c)

Regulates water and electrolyte balance in the kindey

54.

Where is oxytocin produced? 

a)

Hypothalamus

b)

pineal gland

c)

anterior pituitary gland

d)

posterior pituitary gland

55.

Which of the following are true about Human Chorionic gonadotropin (hCG)?

a)

Secreted by blastocyst and placenta

b)

Growth of corpus luteum – keep hormones coming!

c)

Secreted by corpus luteum

d)

Stimulates growth of uterine wall and mammary ducts

56.

Which of the following are true about estrogen?

a)

Secreted by corpus luteum

b)

Stimulates growth of uterine wall and mammary ducts

c)

Suppresses FSH and LH release

d)

Secreted by the placenta and corpus luteum

57.

Which of the following are true about progesterone?

a)

Secreted by the placenta and corpus luteum

b)

Suppresses uterine contractions

c)

Growth of decidual cells (nutrition for placenta)

d)

Suppresses LH and FSH release

e)

Stimulates growth of uterine wall and mammary ducts