Puberty and the Menstrual Cycle

Question 1

What is puberty

Answer 1

Puberty is the physical and emotional changes that take place during adolescence in boys and girls

Question 2

What are the hormones that cause theses changes

Answer 2

Oestrogen and testosterone

Question 3

Where are the hormones released from

Answer 3

• oestrogen is released from the ovaries
• testosterone is released from the testes

Question 4

Typical age range of puberty

Answer 4

8-13 in girls
9-14 in boys

Question 5

Secondary sexual characteristics for boys and girls

Answer 5

Girls
- breasts grow
- ovaries start to release eggs and make hormones
- hips widen
- periods start

Boys
- voice deepens
- tested start to make sperm and hormones
- shoulders broaden
- sexual organs (testes) get bigger
- facial hair

Both
- grow taller/ growth spurt
- pubic hair grows
- hormones change
- reproductive organs develop

Question 6

What is ovulation

Answer 6

Release of egg from ovary

Question 7

What day does ovulation happen on

Answer 7

Day 14

Question 8

Describe the thickness of the uterus lining at each stage of the menstrual cycle

Answer 8

1-5
Beginning of cycle
Lining of uterus lost
Menstruation

6-13
Lining regrows

14
Ovulation

15-28
Uterus lining maintained

Question 9

What hormone rising causes changes is the menstrual cycle from day 1-13

Answer 9

Oestrogen

Question 10

What hormone maintains uterus lining from day 15-28

Answer 10

Progesterone

Question 11

Why is the uterus lining maintained with a good blood supply

Answer 11

So if an egg is fertilised it will be ready for when it implants into the lining of the uterus