Prenatal Development

2. a long tube that connects the fetus to the placenta
3. Sac a sec within the uterus that is filled with liquid to protect the developing fetus
6. fine, downy hair that grows on a fetus' body
8. a developing baby from week 8 until birth
9. the second stage in prenatal development (weeks 3-8)
10. the first stage in prenatal development
12. a test that uses soundwaves to make an image of an unborn baby
13. the length of an average pregnancy
15. a doctor who specializes in pregnancy and childbirth
17. the third stage in prenatal development (week 8-birth)
18. a thick, white pasty substance that protects the fetus' skin against amniotic fluid
19. taking a small amount of amniotic fluid to test for birth defects

1. a protein in the blood that makes our blood "positive" or "negative"
3. the fluid that surrounds a fetus in the amniotic sac
4. organ that connects the fetus to the uterus and provides oxygen and nutrients through the pregnancy
5. a condition characterized by high blood pressure and protein in the urine; can be very serious
7. a form of diabetes that only occurs during pregnancy
11. a fertilized egg
14. baby's development during pregnancy
16. a developing baby from weeks 3-8