Reproductive hormones Flashcards
what are the four hormone produced during male puberty
GnRH, FSH, LH, Testosterone
function of GnRH in both male and females
activates pituitary gland to release FSH and LH
- produced in the hypothalamus
- also released at week seven in the womb
FSH function
acts directly on the reproductive cells of the testicles causing them to go through meiosis (make baby sperm- undeveloped)
- produced in the anterior pituitary gland
LH function
travels to the testes to promote the production of testosterone
- released from the antirior pituitary gland
function of testosterone
stimulates sperm development and formation of sex characteristics
- also causes and increas in secretion of body oil which lead to acne (body will eventualy adjust resolving skin problems)
- produced in the testes
male hormone regulation
Negative feedback loop
- as testosterone increases GnRH decreases lowering LH leves reducing testosterone production
five female sex hormones
GnRH, FSH, LH, Estorgen, and Progesterone
function of FSH in females
triggers the development of follicle cells in the ovary and regualtes the production of estrogen and progesterone
- produced in the anterior pituitary gland
function of LH in females
stimulates ovulation and the formation of the corpus luteum (pitutary gland)
function of estrogen
encourages the endometrium tissue to thicken and initiates the formation of female sex characteristics (produced in the ovaries)
function of progesterone
inhibits further ovulation and prevents uterine contractions (produced by the corpus luteum)
regualtion of femal hormones
negative feedback loop (as estrogen levels increase GnRH decreases)
the four events of the menstrual cycle
- flow phase
- follicualr phase
- ovulation
- luteal phase
flow phase
- 1-5 days
- menstruation
- high levels of FSH
follicular phase
- estrogen levels increase
- walls start to build back up
- follicles develop
- day 6 to 14