Question 1

Fetal hemoglobin becomes largely replaced with adult hemoglobin

Accepted Answer

A)   after the first trimester.
B)   at birth.
C)   from 4 months after birth.
D)   when a child starts school.

Question 2

Labor is regulated by

Accepted Answer

A)   negative feedback control.
B)   positive feedback control.
C)   prolactin.
D)   estrogen.

Question 3

At the blastocyst stage, the cells are considered

Accepted Answer

A)   totipotent.
B)   extraembryonic.
C)   pluripotent.
D)   endodermal.

Question 4

The placenta is composed of tissues from the

Accepted Answer

A)   mother only.
B)   embryo only.
C)   mother and embryo.
D)   chorion only.

Question 5

The fetal blood that passes through the ductus venosus is relatively

Accepted Answer

A)   low in oxygen and nutrients.
B)   high in oxygen and nutrients.
C)   low in oxygen but high in nutrients.
D)   high oxygen but low in nutrients.

Question 6

The major body parts derived from mesoderm are the

Accepted Answer

A)   nervous system and sense organs.
B)   muscle tissue, bone tissue, and bone marrow.
C)   epidermis, hair, nails, and glands of skin.
D)   respiratory tract, urinary bladder, and urethra.

Question 7

The major body parts derived from endoderm are the epithelial lining of

Accepted Answer

A)   the digestive tract.
B)   the respiratory tract.
C)   the urinary bladder.
D)   all of the above.

Question 8

The yolk sac

Accepted Answer

A)   forms blood cells in early development.
B)   provides nutrients to the fetus when the umbilical cord is disconnected.
C)   stores metabolic wastes until the fetus is born.
D)   gives rise to the primary germ layers.

Question 9

The adolescent period begins at the end of the first year and completes at puberty.

Accepted Answer

A) True 
 B)False

Question 10

Thalidomide is

Accepted Answer

A)   a drug that causes fetal alcohol syndrome.
B)   a drug that causes fetal limb defects, but is used to treat leprosy.
C)   a drug that causes mental retardation in fetuses, but is used to treat acne.
D)   a type of bacterial infection.

Question 11

The hormone measured in a pregnancy test is

Accepted Answer

A)   estrogen.
B)   progesterone.
C)   hCG.
D)   ADH.

Question 12

The fetal stage of development begins at the end of the eighth week.

Accepted Answer

A) True 
 B)False

Question 13

The placental membrane is composed of

Accepted Answer

A)   the embryonic disc.
B)   a single layer of epithelial cells.
C)   a double layer of epithelial cells.
D)   the amnion and chorion.

Question 14

The major body part(s)  derived from ectoderm is/are

Accepted Answer

A)   nervous system and skin.
B)   muscle tissue.
C)   bone tissue.
D)   liver and pancreas.

Question 15

Fertilization usually occurs in the

Accepted Answer

A)   ovary.
B)   uterine tube.
C)   uterus.
D)   vagina.

Question 16

The structure that surrounds the cell membrane of the secondary oocyte is the ___ ________.

Accepted Answer

The answer of The structure that surrounds the cell membrane...

Question 17

The process of growing old is called _____.

Accepted Answer

The answer of The process of growing old is called...

Question 18

After birth, the ductus arteriosus constricts and becomes the ligamentum arteriosum.

Accepted Answer

A) True 
 B)False

Question 19

The ductus arteriosus allows fetal blood to move from the

Accepted Answer

A)   right atrium into the left atrium.
B)   left atrium into the right atrium.
C)   aorta into the pulmonary trunk.
D)   pulmonary trunk into the aorta.

Question 20

Apoptosis occurs

Accepted Answer

A)   only in the aged.
B)   only in adults.
C)   from the embryo onward.
D)   only when someone has a disease.

Exam 23: Pregnancy, Growth, and Development

The process of growing old is called _____.

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Thalidomide is

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The adolescent period begins at the end of the first year and completes at puberty.

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The yolk sac

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Fetal hemoglobin becomes largely replaced with adult hemoglobin

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The major body part(s) derived from ectoderm is/are

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The ductus arteriosus allows fetal blood to move from the

Correct AnswerverifiedShow Answer

The major body parts derived from mesoderm are the

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After birth, the ductus arteriosus constricts and becomes the ligamentum arteriosum.

Correct AnswerverifiedShow Answer

The placental membrane is composed of

Correct AnswerverifiedShow Answer

The structure that surrounds the cell membrane of the secondary oocyte is the ___ ________.

Correct AnswerverifiedShow Answer

Labor is regulated by

Correct AnswerverifiedShow Answer

The fetal stage of development begins at the end of the eighth week.

Correct AnswerverifiedShow Answer

At the blastocyst stage, the cells are considered

Correct AnswerverifiedShow Answer

The major body parts derived from endoderm are the epithelial lining of

Correct AnswerverifiedShow Answer

The fetal blood that passes through the ductus venosus is relatively

Correct AnswerverifiedShow Answer

Apoptosis occurs

Correct AnswerverifiedShow Answer

The hormone measured in a pregnancy test is

Correct AnswerverifiedShow Answer

The placenta is composed of tissues from the

Correct AnswerverifiedShow Answer

Fertilization usually occurs in the

Correct AnswerverifiedShow Answer

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The structure that surrounds the cell membrane of the secondary oocyte is the _ ______.

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