Fetal Development

Question 1

Where does conception occur?

Answer 1

In the ampulla of the fallopian tube

Question 2

What is the union of nuclei called?

Answer 2

A zygote (23 chromosomes from ovum, 23 chromosomes from sperm)

Question 3

What is considered an embryo?

Answer 3

3-8 weeks

Question 4

What is considered a fetus?

Answer 4

9-40+ weeks. Heartbeat present.

Question 5

When can a fetus be viable?

Answer 5

23-24 weeks

Question 6

What happens at 12 weeks gestation?

Answer 6

Eyelids close and will reopen at about 24 weeks. Legs & arms move. Heartbeat can be heard.

Question 7

What happens at fetus at 24 weeks?

Answer 7

Fetus covered in vernix caseosa & lanugo. Alveoli present in lungs, resp reflex movement.

Question 8

What happens at fetus at 28 weeks?

Answer 8

Adipose tissue develops rapidly

Question 9

What is defined as full term?

Answer 9

39.0 - 40.6 weeks

Question 10

What is defined as early term?

Answer 10

37-38.6 weeks

Question 11

When does the postpartum period begin?

Answer 11

Right after the placenta is delivered, lasts until 6 weeks after.

Question 12

Naegle’s Rule

Answer 12

Subtract 3 months and add 7 days - take into consideration year

Question 13

What occurs weeks 25-28?

Answer 13

More likely to survive outside uterus now, fat is under skin, head hair is abundant