ch3

Question 1

The fertilized egg implants in the wall of the uterus
during the period of the \_\_\_\_\_\_\_\_\_\_\_\_\_\_.
a. zygote
b. fetus
c. embryo

Answer 1

a

Question 2

Differentiation of cells begins in the period of the
\_\_\_\_\_\_\_\_\_\_\_\_\_\_.
a. embryo
b. zygote
c. fetus

Answer 2

b

Question 3

General risk factors during prenatal development
include inadequate nutrition, stress, and
______________.
a. drugs
b. teratogens
c. maternal age

Answer 3

c

Question 4

Diseases, drugs, and \_\_\_\_\_\_\_\_\_\_\_\_\_\_ are common
categories of teratogens.
a. environmental hazards
b. stress
c. inadequate nutrition

Answer 4

A

Question 5

Which of the following is the least helpful
when checking to see if a fetus has genetic
disorders?
a. amniocentesis
b. ultrasound
c. chorionic villus sampling

Answer 5

B

Question 6

The first stage of labor is usually the longest; the
baby is born in the ______________ stage.
a. first
b. second
c. fourth

Answer 6

B

Question 7

Prepared childbirth emphasizes education,
______________, and the presence of a supportive
adult.
a. teratogens
b. birth in a hospital
c. natural methods of coping with pain

Answer 7

C

Question 8

The national program to eliminate sudden infant
death syndrome (SIDS) encouraged parents to have
their babies ______________.
a. sleep on their back
b. be kept very warm while sleeping
c. sleep on a soft mattress

Answer 8

A

Question 9

The mesoderm will become

Answer 9

muscles bones circ system

Question 10

prenatal dev is divided into how many stages

Answer 10

3

zygote, embyro, fetus

Question 11

when pregnant women do not consume enough folic acid they are likely to have babys born with

Answer 11

spina bifida