The Menstrual Cycle Flashcards
What is the menstrual cycle?
The monthly release of an egg from a woman’s ovaries
The build up and break down of the lining of the uterus
What happens on day 1 of the menstrual cycle?
The lining of the uterus breaks down and bleeding starts (a period).
What happens on day 4 of the menstrual cycle?
The lining of the uterus builds up, ready for a fertilised
What happens on day 14 of the menstrual cycle?
An egg is released
How long does one menstrual cycle last?
28 days
Name the 3 hormones involved in the menstrual cycle
FSH
Oestrogen
LH
Where is FSH produced?
The pituitary gland
Where is Oestrogen produced?
The ovaries
Where is LH produced?
The pituitary gland
What does FSH do?
Mature eggs
Cause ovaries to produce Oestrogen
What does oestrogen do?
Stops FSH
What does LH do?
Causes an egg to be released from the ovaries
