Conception And Stages Of Conception

Question 1

What is conception?

Answer 1

Fertilization when the sperm cell meets the egg cell creating a zygote

Question 2

What is gestation?

Answer 2

Period of conception to birth

Question 3

How is gestational age measured?

Answer 3

Age from first day of last menstrual cycle and in weeks

Lasts around 38-42 days

Question 4

What is in a zygote?

Answer 4

All the DNA to form a human being

Question 5

What is a blastocyst?

Answer 5

Inner cells become the embryo
Outer shell is formed to protect and nourish
Reaches the womb (day 5)

Question 6

What does the blastocyst implant to?

Answer 6

The uterine wall where it receives nourishment from the mother’s blood stream

Question 7

How does the embryo develop?

Answer 7

3-8 weeks
First trimester
Cells continue to divide

Question 8

What differentiation takes place in the embryo stage?

Answer 8

Cells begin to take specific functions

All major organs form

Question 9

What is the greatest risk in the embryo stage?

Answer 9

Forming birth defects and miscarriage

Question 10

How long does the fetus stage last?

Answer 10

9-42 weeks

End of first trimester to the end of the third trimester

Question 11

What happens during the fetus stage?

Answer 11

Major structures are formed

Organs mature

Question 12

What is viability?

Answer 12

When a fetus can be born and live outside of the mother’s womb
At 20-26 weeks

Question 13

What is a trimester?

Answer 13

A 3 month period

Conception of 9 months

Question 14

What is trimester 1s period?

Answer 14

Week 1-12

Question 15

What is trimester 2s period?

Answer 15

Weeks 13-27

Question 16

What is trimester 3s period?

Answer 16

Weeks 28-42

Question 17

What happens during the first trimester?

Answer 17

Rapid growth of embryo
Heart begins beating
All major body parts form

Question 18

What happens during the 2nd trimester?

Answer 18

Organ systems continue to develop
Reproductive organs are visible
Facial features form
First kicks 
About 12 inches, a little over a pound

Question 19

What is important to note about a premature fetus born at the end of the second trimester?

Answer 19

Can survive outside of the womb with medical assistance?

Question 20

What happens in the 3rd trimester?

Answer 20

Most rapid weight gain
All other organs except the brain are complete
Fat layer under the skin smooths it
About 20 inches, weighs 6-9 pounds