Hormones Flashcards
(14 cards)
Hormones
Chemical messengers of our body produced by endocrine glands
Axis
Hormone pathway
HPG axis
Hypothalamus : stimulate pituitary to secrete sex hormones realeasing GnRH
Pituitary: Produce 2 hormone to stimulate gonad FSH/LH
Gonad (Testes, ovaries): recieve stimulation and produce sex hormones
3 major sex hormones
estrogen,testosterone,progesterone
Estrogen where and when
-Produced by follicles in follicles
-puberty
Progesterone where and when
-produced by corpus luteum in ovaries
- fertilization or ovulation
Testosterone where and when
- Created by Leydig cells in between semeniferous tubules
- during puberty
negative
Maintain stability
used mostly in homeostasis
inhibits
positive
Amplify process
found in laborpositive loop amplify strength of uterine contactions through oxytocin.
estrogen role
stimulate thickening
stimulate egg maturation
progesterone role
stimulate thickening ,
Maintains endometrium stimulate development placenta,
triggers menstruation
testosterone role
stimulate spermatogenesis
Regulates libido
LH
leutenizing hormone
produced by pituitary
stimulate gonads
FSH
Follicle stimulating hormone produced by pituitary
stimulate gonads