Menstrual Cycle

Question 1

Describe the process of the menstrual cycle

Answer 1

Old egg leaves body in menstruation (bleeding as uterus lining is shed) (day 0-5)
New egg maturing in the ovary (day 6-12)
Egg released (ovulation) (day 14)
Womb lining thick and spongy ready to receive new egg (day 15-25)
Egg not fertilised so womb lining breaks down (day 28-30)
Egg leaves body in menstruation (day 28-30)

Question 2

How long is one menstrual cycle?

Answer 2

28 days

Question 3

On which day of the menstrual cycle does the period start?

Answer 3

Day 1

Question 4

On which day of the menstrual cycle is an egg released from the ovary?

Answer 4

14th day

Question 5

What happens to the lining of the uterus if an egg is not fertilised?

Answer 5

The lining breaks down

Question 6

Does a woman have periods while she is pregnant? Explain

Answer 6

No, because the lining of the uterus does not break down

Question 7

How long does a period usually last in the 28 day cycle?

Answer 7

4-7 days

Question 8

What does oestrogen do?

Answer 8

Stimulates the lining of the womb to build up

Question 9

What does progesterone do?

Answer 9

Maintains the lining of the womb in the menstrual cycle

Question 10

Explain the purpose of the events that happen during the menstrual cycle in human females

Answer 10

The menstrual cycle in women is a recurring process in which the lining of the uterus is prepared for pregnancy, and if pregnancy does not happen, the lining is shed as menstruation