Lesson #3: Having a baby!!

Objective:

1. Function of placenta and umbilical cord

2. Main stages of fetus development

Stage 1: Germinal Period Day 1 to about day 21 Conception: Sperm and

egg meet The two cells fuse and

then begin to divide until a small ball of cells is formed.

Usually in uterus about 10 days after conception

Stage 2: Embryonic Stage

Week 3 to Week 10 Week 4: Amniotic

fluid, placenta and umbilical cord are formed.

Through the umbilical cord baby receives oxygen and passes waste material, but also toxins

Amniotic fluid gives protection from bumps

At 9 weeks the body is fully formed and is called a Fetus

Stage 3: Fetal development

From week 10 to about week 37 (or when labour begins)

At 10 weeks it is 10cm long

At 5 months the fetus can move and kick

At 7 months: fetus is completely developed and increases in weight and length. Lungs also continue developing.

Week 37-42: Baby is “ready” to be born,

Stage 4: Labour and birth

bibliography http://departments.weber.edu/chfam/

Prenatal/frames1.htm