Question 1

Conjoined twins result from incomplete twinning, which occurs during the first month of gestation.

Accepted Answer

A) True 
 B)False

Question 2

The inner cell mass

Accepted Answer

A)   helps form the placental membrane.
B)   helps form the amnion.
C)   helps form the chorion.
D)   gives rise to the embryo.E) None of the above
F) C) and D)

Question 3

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 4

The postnatal period extends from

Accepted Answer

A)   the fertilized egg until the end of life.
B)   fertilization to birth.
C)   birth to death.
D)   the beginning of the fetal period until the beginning of childhood.E) A) and B)
F) A) and C) C

Question 5

Compared to adult hemoglobin, fetal hemoglobin

Accepted Answer

A)   binds iron more strongly.
B)   has more hemoglobin subunits.
C)   binds oxygen more readily.
D)   has more heme units.E) B) and C)
F) A) and D) C

Question 6

In an adult, a solid, cordlike structure called the ______ ______ represents the former umbilical vein.

Accepted Answer

The answer of In an adult, a solid, cordlike structure...

Question 7

The three leading causes of death in the United States are

Accepted Answer

A)   infection, kidney disease, and influenza.
B)   heart disease, cancer, and stroke.
C)   diabetes, heart disease, and cancer.
D)   COPD, diabetes, and Alzheimer disease.E) B) and C)
F) None of the above

Question 8

Human life span is ___ years.

Accepted Answer

A)   80
B)   90
C)   100
D)   120E) A) and B)
F) A) and C)

Question 9

The fetus is protected from certain infections, to which the mother is immune, by

Accepted Answer

A)   antibodies from the mother's immune system.
B)   antibodies from its own immune system.
C)   its own innate defenses.
D)   the extraembryonic membranes.E) B) and D)
F) C) and D)

Question 10

Which of the following layers is considered loosely organized connective tissue?

Accepted Answer

A)   Mesoderm
B)   Endoderm
C)   Ectoderm
D)   EpidermisE) A) and B)
F) B) and D)

Question 11

Which of the following provides the main source of energy for a newborn during its first few days?

Accepted Answer

A)   Glucose
B)   Glycogen
C)   Fat
D)   ProteinE) C) and D)
F) A) and B)

Question 12

As a rule, during adulthood

Accepted Answer

A)   skeletal muscles tend to lose strength.
B)   the circulatory system becomes less efficient.
C)   the skin becomes less elastic.
D)   all of the above.E) C) and D)
F) All of the above

Question 13

Jeremy cannot ejaculate because of an injury he sustained in a car accident. An assisted reproductive technology that might help him to become a biological father is

Accepted Answer

A)   intrauterine insemination using donor sperm.
B)   gamete interfallopian transfer.
C)   intracytoplasmic sperm injection using his sperm into his partner's secondary oocyte.
D)   a surrogate mother.E) A) and B)
F) C) and D) C

Question 14

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 C)
F) None of the above

Question 15

Aging-related changes include shrinking of the prostate in men and enlargement of the breasts in women.

Accepted Answer

A) True 
 B)False

Question 16

Progesterone in semen stimulates the movement of sperm cells.

Accepted Answer

A) True 
 B)False

Question 17

The period of development during which the contents of a zygote are divided into increasingly smaller cells is _____.

Accepted Answer

The answer of The period of development during which the...

Question 18

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) All of the above
F) C) and D)

Question 19

Centenarians are

Accepted Answer

A)   people who live past 90.
B)   people in the military.
C)   people who live past 100 years.
D)   people who die just before their 100th birthdays.E) C) and D)
F) A) and B)

Question 20

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) None of the above
F) A) and C)

Exam 23: Pregnancy, Growth, and Development

Conjoined twins result from incomplete twinning, which occurs during the first month of gestation.

Correct AnswerverifiedShow Answer

The inner cell mass

Correct AnswerverifiedShow Answer

Passive aging is

Correct AnswerverifiedShow Answer

The postnatal period extends from

Correct AnswerverifiedC

Compared to adult hemoglobin, fetal hemoglobin

Correct AnswerverifiedC

In an adult, a solid, cordlike structure called the ______ ______ represents the former umbilical vein.

Correct AnswerverifiedShow Answer

The three leading causes of death in the United States are

Correct AnswerverifiedShow Answer

Human life span is ___ years.

Correct AnswerverifiedShow Answer

The fetus is protected from certain infections, to which the mother is immune, by

Correct AnswerverifiedShow Answer

Which of the following layers is considered loosely organized connective tissue?

Correct AnswerverifiedShow Answer

Which of the following provides the main source of energy for a newborn during its first few days?

Correct AnswerverifiedShow Answer

As a rule, during adulthood

Correct AnswerverifiedShow Answer

Jeremy cannot ejaculate because of an injury he sustained in a car accident. An assisted reproductive technology that might help him to become a biological father is

Correct AnswerverifiedC

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

Correct AnswerverifiedShow Answer

Aging-related changes include shrinking of the prostate in men and enlargement of the breasts in women.

Correct AnswerverifiedShow Answer

Progesterone in semen stimulates the movement of sperm cells.

Correct AnswerverifiedShow Answer

The period of development during which the contents of a zygote are divided into increasingly smaller cells is _____.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Centenarians are

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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C

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C

In an adult, a solid, cordlike structure called the represents the former umbilical vein.

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C

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