Question 1

The foramen ovale is an opening that allows fetal blood to pass from the

Accepted Answer

A)  right atrium to the left atrium.
B)  left atrium to right atrium.
C)  right ventricle to the left ventricle.
D)  left ventricle to the right ventricle.E) A) and D)
F) All of the above

Question 2

At the blastocyst stage,the cells are considered

Accepted Answer

A)  totipotent.
B)  extraembryonic.
C)  pluripotent.
D)  endodermal.E) A) and D)
F) None of the above

Question 3

The external genitalia of the fetus can be distinguished as male or female by about ___ weeks after fertilization.

Accepted Answer

A)  3
B)  6
C)  12
D)  24E) A) and B)
F) A) and C)

Question 4

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.E) None of the above
F) A) and B)

Question 5

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

Accepted Answer

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

Question 6

Following birth,the infant's metabolic rate

Accepted Answer

A)  increases and its oxygen consumption increases.
B)  increases and its oxygen consumption decreases.
C)  decreases and its oxygen consumption increases.
D)  decreases and its oxygen consumption decreases.E) All of the above
F) B) and C)

Question 7

After birth,the foramen ovale is closed as a result of

Accepted Answer

A)  increasing pressure in the right atrium.
B)  increasing pressure in the left atrium.
C)  increased resistance in the pulmonary circuit.
D)  decreased blood volume in the pulmonary veins.E) A) and B)
F) C) and D)

Question 8

Which of the following is (are) true in regard to the fetal stage of development?

Accepted Answer

A)  It begins 8 weeks after fertilization.
B)  The organ systems are mostly formed,although immature.
C)  The head is disproportionately large compared to the rest of the body at the beginning of the stage.
D)  All of the aboveE) B) and C)
F) None of the above

Question 9

Some factors that help to stimulate the newborn's first breath are increasing CO2,decreasing pH,decreasing O2,decreasing body temperature,and mechanical stimulation.

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

The ductus arteriosus allows fetal blood to bypass the lungs.

Accepted Answer

A) True 
 B)False

Question 12

Passive aging is

Accepted Answer

A)  a result of a person being much less active in later years.
B)  decay of tissues.
C)  a breakdown of structures and slowing of functions.
D)  a buildup of structures and speeding of functions.E) None of the above
F) A) and B)

Question 13

The umbilical cord contains two umbilical veins.

Accepted Answer

A) True 
 B)False

Question 14

The period of preactive dying takes

Accepted Answer

A)  up to six months.
B)  up to three months.
C)  about a month.
D)  two weeks for cancer,two months for heart disease.E) B) and C)
F) A) and C)

Question 15

Which of the following is not a characteristic of childhood?

Accepted Answer

A)  Secondary teeth replacing primary teeth
B)  Becoming reproductively functional
C)  Establishing bowel control
D)  Developing a high degree of voluntary muscular controlE) All of the above
F) B) and C)

Question 16

The ductus venosus is a fetal vessel that transports blood from the umbilical vein to the

Accepted Answer

A)  umbilical artery.
B)  aorta.
C)  inferior vena cava.
D)  superior vena cava.E) C) and D)
F) A) and D)

Question 17

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.E) B) and C)
F) A) and D)

Question 18

During the embryonic stage,the primary germ layers develop from the

Accepted Answer

A)  placentA.
B)  blastocyst.
C)  embryonic disC.
D)  morula.E) A) and D)
F) A) and C)

Question 19

In an adult,the proximal portions of the umbilical arteries persist and supply blood to the _____ _____.

Accepted Answer

The answer of In an adult,the proximal portions of the...

Question 20

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...

Exam 23: Pregnancy, Growth, and Development

The period of preactive dying takes

Correct AnswerverifiedShow Answer

Which of the following is (are) true in regard to the fetal stage of development?

Correct AnswerverifiedShow Answer

Following birth,the infant's metabolic rate

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Passive aging is

Correct AnswerverifiedShow Answer

The foramen ovale is an opening that allows fetal blood to pass from the

Correct AnswerverifiedShow Answer

The external genitalia of the fetus can be distinguished as male or female by about ___ weeks after fertilization.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The ductus arteriosus allows fetal blood to move from the

Correct AnswerverifiedShow Answer

During the embryonic stage,the primary germ layers develop from the

Correct AnswerverifiedShow Answer

After birth,the foramen ovale is closed as a result of

Correct AnswerverifiedShow Answer

In an adult,the proximal portions of the umbilical arteries persist and supply blood to the _____ _____.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The umbilical cord contains two umbilical veins.

Correct AnswerverifiedShow Answer

The placental membrane is composed of

Correct AnswerverifiedShow Answer

At the blastocyst stage,the cells are considered

Correct AnswerverifiedShow Answer

The ductus venosus is a fetal vessel that transports blood from the umbilical vein to the

Correct AnswerverifiedShow Answer

Which of the following is not a characteristic of childhood?

Correct AnswerverifiedShow Answer

The ductus arteriosus allows fetal blood to bypass the lungs.

Correct AnswerverifiedShow Answer

Some factors that help to stimulate the newborn's first breath are increasing CO2,decreasing pH,decreasing O2,decreasing body temperature,and mechanical stimulation.

Correct AnswerverifiedShow Answer

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

Correct Answer
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Correct Answer
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Correct Answer
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In an adult,the proximal portions of the umbilical arteries persist and supply blood to the _ _.

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Some factors that help to stimulate the newborn's first breath are increasing CO₂,decreasing pH,decreasing O₂,decreasing body temperature,and mechanical stimulation.

Correct Answer
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