The menstrual cycle Flashcards
What is ovulation?
When the ovaries release an egg
How often does ovulation occur?
Every 28 days
What happens when an egg is released?
-In preparation the uterus lining becomes thick and spongy
-Egg makes its way to the uterus
-If a sperm is present the egg can be fertilised and implant into the uterus wall to develop into a baby
-If the egg does’nt get fertilised then both the egg and uterus lining are released
State the function of FSH (follicle stimulating hormone)
Causes egg to mature
State where FSH is produced
Pituitary Gland
State the hormone that FSH stimulates the production of
Oestrogen from ovaries
State the effect of oestrogen
Causes uterus lining to build up
Which hormone inhibits FSH release?
Oestrogen
Which hormone does oestrogen stimulate?
Luteinising hormone (LH)
State the effect of luteinising hormone (LH) on the body
Causes ovulation
Where is luteinising hormone produced?
Pituitary Gland
Where is progesterone produced?
The empty egg follicle (corpus luteum)
State the role of progesterone
Maintains uterus lining Inhibits FSH & LH
