B3.2.3 The Menstrual Cycle

Question 1

What is the menstrual cycle

Answer 1

The monthly cycle during which a woman’s body gets ready for pregnancy. Lasts about 28 days

Question 2

What happens when egg is fertilised

Answer 2

May implant in uterus lining
Here it’s protected and receives nutrients and oxygen from mum
The woman is now pregnant

Question 3

What happens if egg is not fertilised

Answer 3

The uterus lining and egg are removed from the body, menstruation

Question 4

Ovary

Answer 4

Where eggs mature

Question 5

Uterus

Answer 5

Where the fetus develops

Question 6

Cervix

Answer 6

The opening of the uterus at the top of the vagina (entrance to uterus)

Question 7

Vagina

Answer 7

Connects the cervix to the outside of the body
Sperm is deposited here by the penis during sexual intercourse

Question 8

Fallopian tube(oviduct)

Answer 8

Carries the ovum from the ovary to the uterus
Egg is fertilised here

Question 9

Ovum

Answer 9

Female sex cell , sometimes called an ‘egg’

Question 10

How many hormones is the menstrual cycle controlled by

Answer 10

4

Question 11

What hormones control menstrual cycle

Answer 11

Follicle stimulating hormone
Oestrogen
Progesterone
Luteinising hormone

Question 12

FSH

Answer 12

Secreted by pituitary gland
Travels to ovaries where ur causes egg to mature
STIMULATES OVARIES TO PRODUCE OESTROGEN

Question 13

Oestrogen

Answer 13

Made and secreted by ovaries
Causes the lining of the uterus to build up
AS OESTROGEN LEVELS RISE THEY INHIBIT FSH PRODUCTION
THIS WOULD PREVENT MORE THAN ONE EGG MATURING
WOULD ALSO STIMULATE PITUITARY GLAND TO RELEASE LH

Question 14

LH

Answer 14

When LH levels reach a peak in the middle of the cycle, ovulation is triggered

Question 15

Progesterone

Answer 15

Maintains uterus lining
Levels of this hormone remain high during pregnancy
INHIBITS LH

Question 16

Progesterone

Answer 16

Maintains uterus lining
Levels of this hormone remain high during pregnancy
INHIBITS LH