the menstrual cycle

Created by

Florrie Adams

Cards (22)

what is the menstrual cycle?
A monthly cycle during which a womans body gets ready for pregnancy
how long does the menstrual cycle last?
28 days
what happens 14 days into the cycle?
An egg is released from the ovary, known as ovulation
When does menstruation occur?
If the egg is not fertilised and then the uterus lining and egg are released from the body
what happens in the ovary?
Eggs mature
what happens in the uterus?
The fetus develops
what is the cervix?
The entrance to the uterus
what happens in the vagina?
Receives sperm from the penis during sexual intercourse
what happens in the fallopian tube?
Where the egg is fertilised before travelling along the tube to the uterus
what 4 hormones control the menstrual cycle?
Follicle stimulating hormone, oestrogen, luteinising hormone, progesterone
where are the hormones made that control the menstrual cycle?
The pituitary gland and ovaries
where is fsh made?
Secreted by the pituitary gland , it travels to the ovaries where it causes an egg to mature
where is oestrogen made?
Ovaries, causes the lining of the uterus to build up
what is triggered when LH levels reach a peak in the middle of the cycle?
Ovulation
what does FSH also stimulate?
The ovaries to produce oestrogen
what does a rise in oestrogen levels inhibit?
The production of FSH, which usually prevents more than one egg maturing, it also stimulates the pituitary gland to release luteinising hormone
what does progesterone maintain?
The uterus lining, levels of this hormone remain high during pregnancy
what happens in the levels of pituitary hormones in the blood during the egg being released?
Surge in LH and FSH hormones
what days do blood oestrogen levels increase the most?
6-14 and 20-24
what days do blood progesterone levels increase the most?
14-26
when is the uterus lining thickest?
12-26 days
how do you interpret graphs?
Where scales are not provided, describe the pattern or trend that the graph show, where scales are provided then use appropriate values from the graph to include within your answer