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Flashcards in hormones of reproduction Deck (13):
1

describe the glands that makes and the function of testosterone

-Made by the interstitial cells of the testis
-has a negative feedback on LH and GnRH

2

describe the glands that makes and the function of GnRH

-Made by hypothalamus
-this is the inciting hormone for puberty
-stimulates the pituitary gland to make FSH, ICSH, and Inhibin

3

describe the glands that makes and the function of FSH

-Made by brain
-Stimulates Spermatogenesis

4

describe the glands that makes and the function of LH (ICSH)

- Made by brain
-stimulates the interstitial cells to make testosterone

5

describe the glands that makes and the function Inhibin

-made by the testes
-inhibits FSH (which stimulates spermatogenesis)

6

describe the glands that makes and the function GnRH (F)

-made by the hypothalamus
-starts puberty and starts the period
-its role is to stiumulate anterior pituitary gland to make FSH and LH

7

describe the glands that makes and the function of FSH (F)

-made by hypothalamus, released by anterior pituitary gland
-Stimulated by GnRH
-causes follicle menstruation over the first couple weeks

8

describe the glands that makes and the function LH (F)

-Made by the hypothalamus, released by Ant. Pituitary
-Stimulated by GnRH
-By day 14 the LH levels spike resulting in ovulation

9

describe the glands that makes and the function of Estrogen

-As the follicle enlarges, it also makes more estrogen
- A positive feed back on hypothalamus, causes high levels of hormones
-stimulates the thickness of the endometrium
-Stimulates GnRH release

10

describe the glands that makes and the function of Pogesterone

-made by the follicle cells after ovulation
-inhibits GnRH release which results in a thick endometrium
-After ovulation the corpus luteum makes both estrogen and progesterone.
-The 2 hormones (Estrogen) case a very thick endometrium and work to inhibit the other hormones by stopping the GnRH production

11

Describe the physical and hormonal changes that affects the uterus during the menstrual cycle

-With out supportive hormones such as FSH and LH the corpus luteum dies by about day 28. Without progesterone and estrogen to support it, the endometrium also dies, and is sloughed off during the first 3-5 days of the next cycle.

12

Describe the function of HCG and where and when it is produced

-HCG is made by embryo from about weeks 2-12
-It is the hormone that is tested in home pregnancy test (also associated with morning sickness)
-It keeps the corpus luteum alive so that endometrium won't shed like an normal menses cycle
-by keeping the corpus luteum alive, estrogen and progesterone continue to be produced

13

describe the effects of relaxin and oxytocin. Where are they produced?

-Relaxin is made by the placenta and relaxes the mom's pelvic structures making it easier for baby to pass
-Oxytocin causes uterine contractions, forcing babys head into the cervix (positive feedback, as cervix pressure causes more oxytocin to be released)