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Multiple Choice
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1
The trophoblast is:
A)the outer layer of cells that develops during the germinal period.
B)the inner layer of cells that develops during the germinal period.
C)the third stage of birth when the placenta and umbilical cord are expelled.
D)the period after childbirth or delivery.
2
The endoderm, mesoderm, and ectoderm develop during the __________ period.
A)germinal
B)mbryonic
C)fetal
D)reterm
3
Which layer of embryonic cells eventually becomes the circulatory system, bones, and muscle?
A)endoderm
B)mesoderm
C)ectoderm
D)blastocyst
4
Which of the following is NOT part of the embryonic period?
A)intensified cell differentiation
B)appearance of organs
C)formation of cellular support systems
D)creation of the zygote
5
Which is the longest period in prenatal development?
A)fetal
B)germinal
C)embryonic
D)organogenesis
6
A bag or an envelope in which the developing embryo floats is called the:
A)amnion.
B)placenta.
C)umbilical cord.
D)blastocyst.
7
The human is 11 inches long, has an audible heartbeat, sucks its thumb, and hiccups. Which trimester of development is this human in?
A)first
B)second
C)third
D)fourth
8
__________ is (are) factor(s) that cause birth defects.
A)Curanderos
B)Organogenesis
C)Teratogens
D)Placentas
9
FAS is a cluster of abnormalities that appears in the offspring of mothers who __________ in pregnancy.
A)take prescription drugs
B)drink alcohol heavily
C)smoke
D)use cocaine
10
According to research, all of the below are negative results of pre-natal exposure to marijuana, EXCEPT:
A)learning and memories difficulties at age 11.
B)depressive symptoms at age 10.
C)deficits in memory and information processing.
D)learning and memories difficulties at age 6.
11
The mortality rate of infants born to adolescent mothers is:
A)two times greater than infants born to mothers in their 20s.
B)one and a half times greater than infants born to mothers in their 20s.
C)one and a half times greater than infants born to mothers in their 30s.
D)two times greater than infants born to mothers in their 30s.
12
In stage __________ of labor, contractions cause the woman's cervix to stretch and open.
A)1
B)2
C)3
D)4
13
An insufficient supply of oxygen is called:
A)oxytocin.
B)involution.
C)anoxia.
D)organogenesis.
14
In the United States, about what percentage of births are attended by a midwife?
A)15%
B)8%
C)5%
D)25%
15
An epidural block is a type of:
A)analgesia.
B)anesthesia.
C)oxytocic.
D)doula.
16
The surgical removal of the baby from the uterus (Caesarean sections) are performed EXCEPT when:
A)labor is longer than 12 hours.
B)the baby's head is too large to pass through the mother's pelvis.
C)the baby is in breech position.
D)the baby is lying crosswise in the uterus.
17
Babies born after a regular period of gestation but weighing less than __________ pounds are called low-birthweight infants.
A)four
B)four and a half
C)five
D)five and a half
18
All the following factors are part of the postpartum period EXCEPT:
A)involution.
B)abstaining from exercise.
C)hormonal changes.
D)fatigue.
19
Regarding bonding, which of the following statements is FALSE?
A)Bonding is the occurrence of close contact, especially physical contact, between parents and newborns in the period shortly after birth.
B)Many hospitals offer "rooming in" to encourage contact between new parents and their infants.
C)There is evidence that bonding is critical to the development of a competent infant.
D)Some physicians believe that during the period shortly after birth, the parents and newborn need to from an emotional attachment as a foundation for optimal development.







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