Question 1

Which of the following does not occur prior to or during stage 1 of labor?

Accepted Answer

A)  bloody show 
B)  effacement 
C)  uterine contractions 
D)  breaking water 
E)  dislodging of the placenta 
A)  bloody show 
B)  effacement 
C)  uterine contractions 
D)  breaking water 
E)  dislodging of the placenta E

Question 2

Why would you predict that the blood carbon dioxide levels in a pregnant woman would fall?

Accepted Answer

A)  She has trouble breathing due to the expanding uterus. 
B)  The fetus is removing carbon dioxide from her blood. 
C)  The maternal oxygen levels are also falling. 
D)  Pregnancy creates a favorable concentration gradient between the fetal and maternal blood. 
E)  The bronchial tubes relax. 
A)  She has trouble breathing due to the expanding uterus. 
B)  The fetus is removing carbon dioxide from her blood. 
C)  The maternal oxygen levels are also falling. 
D)  Pregnancy creates a favorable concentration gradient between the fetal and maternal blood. 
E)  The bronchial tubes relax. D

Question 3

Which of the following statements is related to a decrease in blood flow?

Accepted Answer

A)  Males become infertile. 
B)  Females undergo menopause. 
C)  Ventilation of the lungs is reduced. 
D)  The liver does not metabolize drugs as efficiently as before. 
E)  The homeostatic adjustment to heat is limited. 
A)  Males become infertile. 
B)  Females undergo menopause. 
C)  Ventilation of the lungs is reduced. 
D)  The liver does not metabolize drugs as efficiently as before. 
E)  The homeostatic adjustment to heat is limited. D

Question 4

Which of the following is not associated with the egg?

Accepted Answer

A)  corona radiata 
B)  acrosome 
C)  zona pellucida 
D)  cortical granule 
E)  fertilization membrane 
A)  corona radiata 
B)  acrosome 
C)  zona pellucida 
D)  cortical granule 
E)  fertilization membrane

Question 5

Estrogen is responsible for the onset and continuation of labor.

Accepted Answer

A) True 
 B)False

Question 6

What occurs during stage 3 of labor?

Accepted Answer

A)  The cervix dilates. 
B)  The baby is born. 
C)  Effacement occurs. 
D)  The amniotic sac ruptures. 
E)  The placenta is expelled. 
A)  The cervix dilates. 
B)  The baby is born. 
C)  Effacement occurs. 
D)  The amniotic sac ruptures. 
E)  The placenta is expelled.

Question 7

Which of the following is not true concerning the fetus during the third month of development?

Accepted Answer

A)  Bone begins to be replaced with cartilage in certain areas of the skeleton. 
B)  The nose, eyes, and ears are present. 
C)  Fingernails, nipples, eyelashes, eyebrows, and hair on the head appear. 
D)  Head growth slows down as the rest of the body increases in length. 
E)  It is possible to distinguish males from females. 
A)  Bone begins to be replaced with cartilage in certain areas of the skeleton. 
B)  The nose, eyes, and ears are present. 
C)  Fingernails, nipples, eyelashes, eyebrows, and hair on the head appear. 
D)  Head growth slows down as the rest of the body increases in length. 
E)  It is possible to distinguish males from females.

Question 8

The blood of the mother and the fetus mix in the placenta.

Accepted Answer

A) True 
 B)False

Question 9

How are the pulmonary veins and the umbilical veins similar?

Accepted Answer

A)  They are both present in an adult human. 
B)  They both carry blood to the lungs. 
C)  They both connect to the superior vena cava. 
D)  They both carry oxygen-rich blood. 
E)  They both connect to the placenta. 
A)  They are both present in an adult human. 
B)  They both carry blood to the lungs. 
C)  They both connect to the superior vena cava. 
D)  They both carry oxygen-rich blood. 
E)  They both connect to the placenta.

Question 10

Where are the mitochondria located in the sperm?

Accepted Answer

A)  tail 
B)  middle piece 
C)  head 
D)  nucleus 
E)  cell membrane 
A)  tail 
B)  middle piece 
C)  head 
D)  nucleus 
E)  cell membrane

Question 11

When does the heart begin to develop?

Accepted Answer

A)  week 1 
B)  week 3 
C)  week 5 
D)  week 7 
E)  week 9 
A)  week 1 
B)  week 3 
C)  week 5 
D)  week 7 
E)  week 9

Question 12

The adhering follicular cells that surround the egg are called the

Accepted Answer

A)  pronuclei. 
B)  zona pellucida. 
C)  corona radiata. 
D)  cortical granule cells. 
E)  outer cell mass. 
A)  pronuclei. 
B)  zona pellucida. 
C)  corona radiata. 
D)  cortical granule cells. 
E)  outer cell mass.

Question 13

Which of the following skin changes is not associated with growing older?

Accepted Answer

A)  Pigmented blotches appear on the skin. 
B)  There is less adipose tissue in the subcutaneous layer. 
C)  The number of elastic fibers decreases. 
D)  There is an increase in the number of oil glands. 
E)  There are fewer sweat glands for sweating to occur. 
A)  Pigmented blotches appear on the skin. 
B)  There is less adipose tissue in the subcutaneous layer. 
C)  The number of elastic fibers decreases. 
D)  There is an increase in the number of oil glands. 
E)  There are fewer sweat glands for sweating to occur.

Question 14

Which of the following is not involved in the increase in blood volume in a pregnant woman?

Accepted Answer

A)  progesterone 
B)  artery expansion 
C)  renin-angiotensin-aldosterone mechanism 
D)  an increase in blood oxygen levels 
E)  sodium and water retention 
A)  progesterone 
B)  artery expansion 
C)  renin-angiotensin-aldosterone mechanism 
D)  an increase in blood oxygen levels 
E)  sodium and water retention

Question 15

At the end of the embryonic period, the embryo is about 12 inches long.

Accepted Answer

A) True 
 B)False

Question 16

Sheila is experiencing contractions every 15 to 20 minutes that last for 40 seconds or longer. Is she in labor?

Accepted Answer

The answer of Sheila is experiencing contractions every 15 to...

Question 17

How do males and females differ as they age?

Accepted Answer

A)  Females undergo menopause, but males do not undergo any changes in their reproductive hormone levels. 
B)  Males can continue to produce sperm until death, but females do not continue to produce eggs. 
C)  Males develop urinary incontinence, but females do not. 
D)  Males lose skeletal muscle mass, but females tend to gain muscle mass. 
E)  Females dehydrate faster than males do. 
A)  Females undergo menopause, but males do not undergo any changes in their reproductive hormone levels. 
B)  Males can continue to produce sperm until death, but females do not continue to produce eggs. 
C)  Males develop urinary incontinence, but females do not. 
D)  Males lose skeletal muscle mass, but females tend to gain muscle mass. 
E)  Females dehydrate faster than males do.

Question 18

What structure produces progesterone and estrogen during pregnancy?

Accepted Answer

A)  placenta 
B)  hypothalamus 
C)  anterior pituitary 
D)  posterior pituitary 
E)  ovaries 
A)  placenta 
B)  hypothalamus 
C)  anterior pituitary 
D)  posterior pituitary 
E)  ovaries

Question 19

At what point during development does the embryo form three germ layers?

Accepted Answer

A)  when it begins cleavage 
B)  when the nervous system develops 
C)  when it forms the gastrula 
D)  when it forms the inner cell mass 
E)  when it becomes recognizable as human 
A)  when it begins cleavage 
B)  when the nervous system develops 
C)  when it forms the gastrula 
D)  when it forms the inner cell mass 
E)  when it becomes recognizable as human

Question 20

Which of the following is not a chief effect of progesterone?

Accepted Answer

A)  increased uterine blood flow 
B)  relaxation of smooth muscle 
C)  reduced uterine motility 
D)  reduced maternal immune response to fetus 
E)  low blood pressure 
A)  increased uterine blood flow 
B)  relaxation of smooth muscle 
C)  reduced uterine motility 
D)  reduced maternal immune response to fetus 
E)  low blood pressure

Exam 18: Development and Aging

Which of the following does not occur prior to or during stage 1 of labor?

Why would you predict that the blood carbon dioxide levels in a pregnant woman would fall?

Which of the following statements is related to a decrease in blood flow?

Which of the following is not associated with the egg?

Estrogen is responsible for the onset and continuation of labor.

What occurs during stage 3 of labor?

Which of the following is not true concerning the fetus during the third month of development?

The blood of the mother and the fetus mix in the placenta.

How are the pulmonary veins and the umbilical veins similar?

Where are the mitochondria located in the sperm?

When does the heart begin to develop?

The adhering follicular cells that surround the egg are called the

Which of the following skin changes is not associated with growing older?

Which of the following is not involved in the increase in blood volume in a pregnant woman?

At the end of the embryonic period, the embryo is about 12 inches long.

Sheila is experiencing contractions every 15 to 20 minutes that last for 40 seconds or longer. Is she in labor?

How do males and females differ as they age?

What structure produces progesterone and estrogen during pregnancy?

At what point during development does the embryo form three germ layers?

Which of the following is not a chief effect of progesterone?

Human Organization

Chemistery of Life

Cell Structure and Function

Torganization and Regulation of Body Systems

Cardiovascular System : Heart and Blood Vessels

Cardiovascular System : Blood

The Lumphatic and Immune Systems

Biology of Infectious Diseases

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocring System

Reproductive System

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

Dna Piology and Technology

Hummen Evolution

Ecology and the Nature of Ecosystems

Hummen Interactions With the Biosphere

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