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Theriogenology > Repro Hormones > Flashcards

Flashcards in Repro Hormones Deck (81):
1

What is the biochemical classification of GnRH?

Neuropeptide

2

What is the biochemical classification of LH?

Glycoprotein

3

What is the biochemical classification of FSH?

Glycoprotein

4

What is the biochemical classification of prolactin?

Protein

5

What is the biochemical classification of oxytocin?

Neuropeptide

6

What is the biochemical classification of estradiol?

Steroid

7

What is the biochemical classification of progesterone?

Steroid

8

What is the biochemical classification of testosterone?

Steroid

9

What is the biochemical classification of inhibin?

Glycoprotein

10

What is the biochemical classification of activin?

Glycoprotein

11

What is the biochemical classification of prostaglandin F2a?

Prostaglandin (C-20 fatty acid)

12

What is the biochemical classification of prostaglandin E2?

Prostaglandin (C-20 fatty acid)

13

What is the biochemical classification of hCG?

Glycoprotein

14

What is the biochemical classification of eCG?

Glycoprotein

15

What is the biochemical classification of placental lactogen?

Protein

16

What is the source of GnRH?

Hypothalamic surge and tonic centers

17

What is the source of LH?

Anterior pituitary

18

What is the source of FSH?

Anterior pituitary

19

What is the source of prolactin?

Anterior pituitary

20

What is the source of oxytocin?

Synthesized by hypothalamus and CL, stored in posterior pituitary

21

What is the source of estradiol?

- Granulosal cells of follicle
- Sertoli cells of testis

22

What is the source of progesterone?

- CL
- Placenta

23

What is the source of testosterone?

Leydig cells (interstitial), Theca interna

24

What is the source of inhibin?

- Granulosa cells (female)
- Sertoli cells (male)

25

What is the source of activin?

- Placental cells (human female)
- Granulosa cells (female)
- Sertoli cells (male)

26

What is the source of prostaglandin F2a?

- Uterine endometrium (female)
- Vesicular glands (male)

27

What is the source of prostaglandin E2?

- Ovary
- Uterus
- Embryonic membranes

28

What is the source of hCG?

Trophoblast of blastocyst (chorion)

29

What is the source of eCG?

Chorionic girdle cells

30

What is the source of placental lactogen?

Placenta

31

What is the target tissue in the male for GnRH?

Anterior pituitary

32

What is the target tissue in the male for LH?

Testis (Interstitial cells of Leydig)

33

What is the target tissue in the male for FSH?

Testis (Sertoli cells)

34

What is the target tissue in the male for prolactin?

- Testis
- Brain

35

What is the target tissue in the male for oxytocin?

- Smooth muscle of epididymal tail
- Ductus deferens
- Ampulla

36

What is the target tissue in the male for estradiol?

Brain (Inhibits long bone growth)

37

What is the target tissue in the male for testosterone?

- Accessory sex glands
- Tunica dartos of scrotum
- Seminiferous epithelium
- Skeletal muscle

38

What is the target tissue in the male for inhibin?

Anterior pituitary (gonadotrophs)

39

What is the target tissue in the male for activin?

Anterior pituitary (gonadotrophs)

40

What is the target tissue in the male for prostaglandin F2a?

Epididymus

41

What is the target tissue in the female for GnRH?

Anterior pituitary

42

What is the target tissue in the female for LH?

Ovary (Theca interna and luteal cells)

43

What is the target tissue in the female for FSH?

Ovary (Granulosa cells)

44

What is the target tissue in the female for prolactin?

- Mammary cells
- CL (some species)

45

What is the target tissue in the female for oxytocin?

- Myometrium
- Endometrium
- Myoepithelial cells of mammary glands

46

What is the target tissue in the female for estradiol?

- Hypothalamus
- Entire repro tract
- Mammary gland

47

What is the target tissue in the female for progesterone?

- Endometrium
- Mammary gland
- Myometrium
- Hypothalamus

48

What is the target tissue in the female for testosterone?

- Brain
- Skeletal muscle
- Granulosa cells

49

What is the target tissue in the female for inhibin?

Anterior pituitary (gonadotrophs)

50

What is the target tissue in the female for activin?

Anterior pituitary (gonadotrophs)

51

What is the target tissue in the female for prostaglandin F2a?

- CL
- Myometrium
- Ovulatory follicles

52

What is the target tissue in the female for prostaglandin E?

- CL
- Oviduct

53

What is the target tissue in the female for hCG?

Ovary

54

What is the target tissue in the female for eCG?

Ovary

55

What is the target tissue in the female for placental lactogen?

Mammary gland

56

What is the primary action of GnRH in the male?

Release of FSH/LH from anterior pituitary

57

What is the primary action of LH in the male?

Stimulates testosterone production

58

What is the primary action of FSH in the male?

Sertoli cell function

59

What is the primary action of prolactin in the male?

Can induce maternal behavior

60

What is the primary action of oxytocin in the male?

- PGF2a synthesis
- Pre-ejaculatory moment of spermatozoa

61

What is the primary action of estradiol in the male?

Sexual behavior

62

What is the primary action of testosterone in the male?

- Anabolic growth
- Promotes spermatogenesis
- Promotes secretion of accessory sex glands

63

What is the primary action of inhibin in the male?

Inhibits FSH secretion

64

What is the primary action of activin in the male?

Inhibits FSH secretion

65

What is the primary action of prostaglandin F2a in the male?

- Affects activity of spermatozoa
- Causes epididymal contractions

66

What is the primary action of hCG in the male?

Increase growth of fetal testis

67

What is the primary action of GnRH in the female?

Release of FSH/LH from anterior pituitary

68

What is the primary action of LH in the female?

- Stimulates ovulation
- Formation of CL
- Progesterone secretion

69

What is the primary action of FSH in the female?

- Follicular development
- Estradiol secretion

70

What is the primary action of prolactin in the female?

- Lactation
- Maternal behavior
- CL function

71

What is the primary action of oxytocin in the female?

- Uterine motility
- Promotes uterine PGF2a synthesis
- Milk ejection

72

What is the primary action of estradiol in the female?

- Sexual behavior
- GnRH
- Elevated secretion of the entire tract
- Enhanced uterine motility

73

What is the primary action of progesterone in the female?

- Endometrial secretion
- Inhibits GnRH release
- Inhibits reproductive behavior
- Promotes maintenance of pregnancy

74

What is the primary action of testosterone in the female?

- Substrate for E2 synthesis
- Abnormal masculization

75

What is the primary action of inhibin in the female?

Inhibits FSH secretion

76

What is the primary action of activin in the female?

Inhibits FSH secretion

77

What is the primary action of prostaglandin F2a in the female?

- Luteolysis
- Promotes uterine tone and contraction
- Ovulation

78

What is the primary action of prostaglandin E in the female?

- Ovulation
- Stimulate CL secretion of progesterone

79

What is the primary action of hCG in the female?

Facilitate production of progesterone by ovary

80

What is the primary action of eCG in the female?

Causes formation of accessory CL

81

What is the primary action of placental lactogen in the female?

Mammary stimulation