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Flashcards in Final Practice Questions 2 Deck (51)
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1
Q

Stimulates calcitriol production

A

PTH

2
Q

Inhibits PTH secretion

A

Calcitriol

3
Q

Lowers blood calcium levels

A

Calcitonin

4
Q

Binds to receptors in the digestive tract and stimulates the production of enzymes that transfer Calcium from the digestive tract into the blood

A

Calcitriol

5
Q

Precursor for Calcitriol

A

Vit D3

6
Q

Stimulates osteoclast activity by causing osteoclasts to secrete a stimulatory cytokine

A

PTH

7
Q

Stimulates osteoblasts to build bone

A

Calcitonin

8
Q

Produced by cells in the kidney

A

Calcitriol

9
Q

Produces by cells in the thyroid gland

A

Calcitonin

10
Q

Stimulates excretion of phosphate in urine

A

PTH

11
Q

Increases the rate of excretion of CA++ into urine and feces

A

Calcitonin

12
Q

Stimulates the uptake of Ca++ into mammary glands for lactation

A

PTHrp

13
Q

Prolactin stimulates the production of __

A

Calcitriol

14
Q

Low blood calcium directly stimulates the secretion of ___

A

PTH

15
Q

Elevated blood calcium stimulates the secretion of ___

A

Calcitonin

16
Q

Inhibits the actions of osteoclasts

A

Calcitonin

17
Q

A person experiencing extensive bone demineralization, painful abdominal cramps, depressed mood and kidney stones is most likely to be suffering from..

A

PTH secreting tumor

18
Q
WHich hormone can decrease the risk of developing osteoporosis?
A. GH
B. Calcitonin
C. Estrogen
D. Androgen
E. All of these
A

E

19
Q

Inadequate mineralization of bone with adequate protein matrix production is the result of…

A

Vit D3 deficiency

20
Q

Which hormone stimulates testosterone production by the testes?

A

LH

21
Q
WHich hormone plays a role in spermatogenesis?
A. Testosterone
B. FSH
C. Relaxin
D. All of these
A

D

22
Q

Which level of prolactin increases the ability of testicular leydig cells to respond to LH?

A

Normal male levels of Prolactin

23
Q

Which hormone can stimulate testosterone production?

A

Testicular gonadotrophin Releasing Hormone

24
Q
Testicular Sertoli cells do all of the following except
A. Regulate Sperm production
B. Produce inhibin
C. Produce testosterone
D. Convert testosterone into estrogen
A

C

25
Q

WHich hormone exerts negative feedback regulation on FSH secretion?

A

Inhibin

26
Q

Which hormone exerts negative feedback on LH secretion?

A

Testosterone

27
Q

The prostaglandins found in the seminal fluid are produced by the ___

A

seminal vesicles

28
Q

Sperm maturation occurs in the __

A

epididymis

29
Q

Gonadotrophin Releasing Hormone stimulates the secretion of __ and __

A

LH

FSH

30
Q
WHich hormone is not correctly matched with the structure that produces it?
A. GRH- Anterior Pituitary
B. Melatonin- Pineal
C. Oxytocin- Hypothalamus
D. FSH- Anterior Pituitary
A

A

31
Q

Testosterone stimulates all of the following except..
A. Embryonic Differentiation of the indifferent gonad into a testis
B. Embryonic development of the male reproductive tract
C. Development of the secondary sexual characteristics of males at puberty
D. Libido in both human males and females

A

C

32
Q

In the female, LH stimulates
A. maturation of primordial follicles into primary follicles
B. Maturation of primary follicles into secondary follicles
C. Maturation of secondary follicles into tertiary follicles
D. ovulation
E. All of the above

A

E

33
Q

Atresia of tertiary follicles can be the result of excessive levels of __

A

LH

34
Q
Ovarian granulosa cells produce all of the following except
A. Anti Mullerian Hormone
B. Androgens
C. Inhibin
D. IGFs
E. Estrogen
A

B

35
Q
Estrogen can stimulate the ovarian granulosa cells to 
A. undergo mitosis
B. develop more FSH receptors
C. Produce more estrogen
D. All of these
A

D

36
Q

Theca Interna cells do all of the following except..
A. Produce androgens
B. Serve as nurse cells to oocytes
C. Produce estrogens
D. Differentiate into luteal cells and produce progesterone

A

B

37
Q

Increased secretion of Gonadotrophin Releasing hormone that drives the ovulation is caused by
A. decline of estrogen levels at the end of the follicular phase
B. The rise of estrogen production at the end of the follicular phase
C. Atresia of the preovulatory follicle
D. Death of the corpus luteum

A

B

38
Q

What rescues the corpus luteum from luteolysis?

A

Human chorionic gonadotrophin

39
Q

During most of the follicular phase, secretion of GnRH by the cyclic center of the hypothalamus is suppressed by…

A

GABA

40
Q

During the luteal phase , secretion of the GnRH by the cyclic center of the hypothalamus is suppressed by..

A

Endorphines

41
Q

WHich hormone suppresses GnRH secretion by the cyclic center during the luteal phase?

A

Progesterone

42
Q

Progesterone stimulates all of the following except
A. secretion of nutrients into the uterine lumen
B. Stimulates uterine endometrium growth during the proliferative phase of the uterus
C. Development of the glandular structure of the uterine endometrium
D. Development of the glandular structure of mammary glands

A

B

43
Q

Which molecule inhibits uterine contractions?

A

Progesterone

44
Q

Which molecule stimulates uterine contractions?

A

Estrogen

45
Q

Which hormone causes the softening of the uterine cervical connective tissue allowing it to stretch at partuition?

A

Relaxin

46
Q

Estrogen causes all of the following except
A. Inhibition of gap junction formation between uterine myometrial cells
B. Production of a large volume of watery cervical mucus that promotes sperm survical
C. Keratinization of vaginal epithelium that protects the female reproductive tract from infection and damage
D. Contractions of the fimbria of the oviduct at the time of ovulation

A

A

47
Q

Which hormone stimulates fetal growth and protein synthesis, causes insulin insensitivity and stimulates lipolysis in the mother towards the end of pregnancy?

A

Human Chorionic Gonadotrophin

*AKA Placental Lactogen

48
Q

Which signal begins the process of partuition

A

Increased secretion of cortisol by the fetal adrenal

49
Q

The fetal adrenal gland plays a role in
A. Determining when partuition should begin
B. Producing androgens (DHEA) to stimulate fetal growh
C. Producing cortisol at the end of pregnancy to stimulate fetal maturation
D. Producing androgens to serve as a precursor for placental production of estrogen
E. All of the above

A

E

50
Q

Lactation has all of the following effects on the mother except
A. Hastening the return of ovulatory cycles
B. Stimulating endorphin release to improve the mother’s mood
C. Making it easier for the mother to lose body fat by mobilizing her energy stores for milk production
D. Stimulating uterine contractions and returning the uterus to a smaller size faster..

A

A

51
Q

Which hormone is not correctly matched with its action on mammary glands?
A. Oxytocin- stimulates release of milk
B. Oxytocin- Stimulates milk synthesis
C. Prolactin- stimulates milk synthesis
D. Progesterone- Inhibits the activation of enzymes involved in milk synthesis

A

B