5.Fertilisation and
pregnancy🤰🏼
Fertilisation
is the unión of a female and a male sex cell
process
- The ovarie releases an egg
- Sperm enters to the female body
- They unite in the Fallopian Tube. This is a zygote
- The zygote divide and formas an embryo
- The embryo implants in an uterus wall
Pregnancy
it's aprox. 9 months
parts
umbilical cord
connects the placenta to tbe baby
amniotic sac
it contains the amniotic fluid
placenta
is responsible for storing oxygen and nutrients
Stages of embryonic development
Early: it's formado a tissue in the wall of the uterus