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.