Prenatal Development

Question 1

What is the difference between an Obstetrician, Gynecologist and OB/GYN?

Answer 1

Obstetricians focus on pregnancy and birth. Gynecologists focus on women’s health. OB/GYN can do both practices.

Question 2

How long is the prenatal period?

Answer 2

40 weeks (9 months)

Question 3

Stage 1

Answer 3

Fertilzation

Question 4

Stage 2

Answer 4

Implantation + Germinal Stage

Question 5

Stage 3

Answer 5

Embryonic Stage

Question 6

Stage 4

Answer 6

Fetal Stage

Question 7

What is the fertilized egg called in stage 1?

Answer 7

Zygote

Question 8

How long does stage 2 last, and what is happening during this time?

Answer 8

2 weeks, Forms ball of cells called morula. Day 4 becomes a fluid filled cavity forms blastocyst. Attached to wall of uterus.

Question 9

What role does the hormonal hCG have?

Answer 9

Produces progesterone to maintain pregnancy.

Question 10

How long does stage 3 last?

Answer 10

2 to 6 weeks

Question 11

What is the tissue called during stage 3?

Answer 11

Embryo

Question 12

Why is stage 3 the most critical stage? What is being developed at this time?

Answer 12

Body systems are being developed.

Question 13

During stage 4, what is the developing tissue called?

Answer 13

Fetus

Question 14

How long does stage 4 last?

Answer 14

9 weeks to birth