REPRODUCTION

fetal development

Fertilisation

changes sex hormones cause

female sex cell

ovulation

implantation

it is the discharge of ova or ovules from the ovary

male sex cell

placenta

amniotic fluid

female reproductive system

menstrual cycle

male reproductive system

umbilical cord

girls

boys

reproduction is one of the seven

fusing the nucleus of a male sex cell with an egg cell to create a new life.

the cells form a ball and it settles into the wall of the uterus

egg cells

it is a cell at is needed for fertilisation to happen. Stored in ovaries. If it is not fertilised, dies after 24hrs

uterus

ovary

oviduct

vagina

image

sperm cell

has a streamlined head and long thin tail-helps to move quickly

penis

sperm ducts

testes

image

where the sperm enters

where baby develops

where eggs are stored

tube that the egg flows when it has matured

where sperm is made

where sperm is spurted out

sperm is pumped along this

both

hair on legs

growth spurt

hair grows underarm and pubic region

breast develop

hips widen

period starts

uterus develop

penis grows

voice deepens

hair grows on face

sperm is produced

carries blood from the fetus to placenta and back again

growth of the fetus in the womb

lets molecules move between the mother and the fetus' blood

fluid that protects the fetus, and lets it move

occurs every month, a repetitive sequence of events that prepares the womb to receive fertolised egg

  1. bleeding (day 1)
  2. uterus lining builds up
  3. egg released(day 14)
  4. fertilised- period stop, unfertilised- continue
  5. lining breaks down(day 28)