Growth and Development

To learn about foetal development after fertilisation Learning Intention To learn about foetal development after fertilisation

Human growth and development Fertilisation till death Influenced by diet, water, vitamins/minerals, environmental conditions

Fertilisation Where does fertilisation occur? What is the new cell called when the egg and sperm fuse? Where will the baby grow? How does the growing baby feed?

Inside the womb The ball of cells becomes an EMBRYO Some of the cells form organs- the others form the PLACENTA

3 weeks The baby-in-the-making is a ball of cells called a BLASTOCYST. The blastocyst contains a full set of DNA from mum and dad, which determines sex, eye colour, and other traits.

6 weeks Ball of cells looks like a tadpole Has a head end and tail end Heart begins to form

8 weeks Can now see eyes Arms and legs have formed with tiny fingers and toes Baby is called FETUS

12 weeks Can kick its legs and move fingers Internal organs are working

18 weeks Mum should feel baby moving from inside her tummy

24 weeks Baby's taste buds are developing. Brain is growing very quickly, and hair may be growing, too. About a foot long and weighs just over a pound.

32 weeks Baby has grown little fingernails and toenails. Almost 17 inches long (head to heel) and weighs about 3 3/4 pounds.

37-40 weeks Baby is now considered full- term. Lungs should work fine if he's born now Baby’s head is just above the cervix- when muscles in the mum’s uterus contract- the head will be born first

Pregnant mothers lifestyle Diet Certain foods Smoking Alcohol Drugs

Childhood Milk- solid food Dependant Learning skills

Adolescence and adulthood More independent Puberty Old age