SBI4U: Female Reproductive Hormones
Ovaries A reproductive organ and an endocrine gland The ovaries are located in the _____________
on either side of the uterus. They are connected to each other through
___________________________ Each ovary is roughly the size on an ___________
Watch the animation and answer the questions:1. Where are eggs produced?
2. Where are eggs fertilized?
3. Where do eggs go after they are fertilized?
Important hormones produced/used in the ovaries: Estrogen Progesterone FSH (_________________________________) LH (_____________________________)
FSH is a hormone that : Is produced in ________________________ Is carried to ovaries _______________________ Causes an ____________________________________ Stimulates ovaries to release the hormone ______________
LH is a hormone that Is produced in the __________________________ Causes the mature egg to be released from the ovary (___________________________) Transforms follicles that have released an egg into ________________________
o Corpus luteum is the site of ___________________________________
Progesterone Progesterone’s main purpose is to promote the _________________________________ Progesterone levels tend to _______________________________ During ovulation, Progesterone levels sky rocket, in order to ____________________ Once progesterone levels fall again, the _______________________
If a woman fails to ovulate during her cycle, it is most likely because of ______________ __________________________
When progesterone levels decrease, estrogen levels increase. This imbalance can be toxic.
Estrogen Estrogen is extremely important in the _______________________________________ Controls growth of the endomertium (uterine lining) during the menstrual cycle in
_____________________________________ Estrogen is secreted from a ___________________________ Stops the production of ___________________ (so you only have one mature egg) Stimulates pituitary gland to __________________
Phase Description of Events Hormone Produced Days
flow Menstruation (bleeding) 1-5
follicular Follicles Develop in Ovaries estrogen 6-13
ovulation Oocyte bursts form ovary 14
luteal Corpus Luteum forms, endometrium thickens
Estrogen and progesterone 15-28
Polycystic Ovary Syndrome Cells grow in order to
build tissues. Tissues build organs.
PCOS, is the rapid _____________________
All unused cells build and form tissue cysts.
These tissue cysts cause the _________________
No ovaries = no eggs. No eggs = infertility.