Lesson 10: The Menstrual Cycle

Question 1

What do reproductive hormones cause to develop in the body?

Answer 1

• Reproductive hormones cause secondary sex characteristics to develop.

Question 2

Where is oestrogen produced?

Answer 2

• Oestrogen is produced in the ovaries.

Question 3

What happens at puberty for women?

Answer 3

• Eggs begin to mature.
• And one is released approximately every 28 days.
• The release of the mature egg is “ovulation.”

Question 4

What is the main male reproductive hormone?
Where is it produced?
What does it stimulate?

Answer 4

1.) Testosterone.
2.) Produced in the testes.
3.) Stimulates sperm production.

Question 5

What is the role of FSH in the menstrual cycle?

Answer 5

• Produced by pituitary gland.
• Triggers the maturation of an egg in the ovary.
• Also, triggers the ovaries to produce oestrogen.

Question 6

What is the role of oestrogen in the menstrual cycle?

Answer 6

• Oestrogen builds up the uterus lining.
• Oestrogen inhibits the production of FSH/ triggers the production of LH.

Question 7

Why is it important that progesterone inhibits the production of FSH/ LH?

Answer 7

• Prevents any other eggs from maturing/ being released from the ovaries.
• Only one egg should be fertilised and implanted into the uterus lining.

Question 8

What is the role of LH in the menstrual cycle?

Answer 8

• LH triggers the release of the mature egg (ovulation) into the uterus

Question 9

What is the role of progesterone in the menstrual cycle?

Answer 9

• Maintains uterus lining (in case the egg becomes fertilised/ implanted.)
• Inhibits the production of FSH/ LH.

Question 10

What happens if the egg isn’t fertilised?

Answer 10

• The egg and uterus lining are released.
• Known as period.