Question 1

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 2

The ________ is the first embryonic membrane to appear,and it is the first site of ________.

Accepted Answer

A)  amnion, umbilical cord formation 
B)  yolk sac, placenta development 
C)  chorion, neural system development 
D)  allantois, amniotic fluid formation 
E)  yolk sac, blood cell formation 
A)  amnion, umbilical cord formation 
B)  yolk sac, placenta development 
C)  chorion, neural system development 
D)  allantois, amniotic fluid formation 
E)  yolk sac, blood cell formation

Question 3

The white,greasy,cheeselike substance that covers the fetus's skin is called

Accepted Answer

A)  lanugo. 
B)  fontanels. 
C)  vernix caseosa. 
D)  foramen ovale. 
E)  ductus arteriosus. 
A)  lanugo. 
B)  fontanels. 
C)  vernix caseosa. 
D)  foramen ovale. 
E)  ductus arteriosus.

Question 4

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

Question 5

Most birth defects are due to the inheritance of an abnormal number of chromosomes.

Accepted Answer

A) True 
 B)False

Question 6

Once the cortical granules release their enzymes,the corona radiata becomes the fertilization membrane.

Accepted Answer

A) True 
 B)False

Question 7

The nervous system develops enough to permit reflex actions during which period of development?

Accepted Answer

A)  pre-embryonic 
B)  embryonic, weeks 6-8 
C)  fetal, months 3-4 
D)  embryonic, weeks 2-3 
E)  embryonic, weeks 4-5 
A)  pre-embryonic 
B)  embryonic, weeks 6-8 
C)  fetal, months 3-4 
D)  embryonic, weeks 2-3 
E)  embryonic, weeks 4-5

Question 8

Which of the following problems is not associated with pregnancy?

Accepted Answer

A)  lordosis 
B)  lower back pain 
C)  gastrointestinal reflux 
D)  incontinence 
E)  impotence 
A)  lordosis 
B)  lower back pain 
C)  gastrointestinal reflux 
D)  incontinence 
E)  impotence

Question 9

Which hypothesis of aging involves mitochondria?

Accepted Answer

A)  gene damage by free radicals 
B)  whole-body process 
C)  extrinsic factors 
D)  damage accumulation 
E)  external factors 
A)  gene damage by free radicals 
B)  whole-body process 
C)  extrinsic factors 
D)  damage accumulation 
E)  external factors

Question 10

Fetal development includes the third through ninth months of development.

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

The umbilical arteries carry

Accepted Answer

A)  oxygen-rich blood to the developing fetus. 
B)  oxygen-rich blood to the placenta. 
C)  oxygen-poor blood to the developing fetus. 
D)  oxygen-poor blood to the placenta. 
E)  oxygen-rich blood to the mother. 
A)  oxygen-rich blood to the developing fetus. 
B)  oxygen-rich blood to the placenta. 
C)  oxygen-poor blood to the developing fetus. 
D)  oxygen-poor blood to the placenta. 
E)  oxygen-rich blood to the mother.

Question 13

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

Question 14

Embryonic development begins with

Accepted Answer

A)  fertilization. 
B)  the first cell division. 
C)  the development of the blastocyst. 
D)  implantation. 
E)  gastrulation. 
A)  fertilization. 
B)  the first cell division. 
C)  the development of the blastocyst. 
D)  implantation. 
E)  gastrulation.

Question 15

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 16

Which of the following defines "aging"?

Accepted Answer

A)  progressive changes from infancy until death 
B)  the loss of function of various body systems 
C)  the onset of sexual maturity 
D)  the development of disease or disability 
E)  the failure to thrive 
A)  progressive changes from infancy until death 
B)  the loss of function of various body systems 
C)  the onset of sexual maturity 
D)  the development of disease or disability 
E)  the failure to thrive

Question 17

Describe what occurs during cleavage,growth,morphogenesis,and differentiation.

Accepted Answer

Cleavage is the division of the zygote f

Question 18

Estrogen is responsible for the onset and continuation of labor.

Accepted Answer

A) True 
 B)False

Question 19

When does the mother first begin to feel the fetus move?

Accepted Answer

A)  1-2 months 
B)  3-4 months 
C)  5-7 months 
D)  7-9 months 
E)  1-4 weeks 
A)  1-2 months 
B)  3-4 months 
C)  5-7 months 
D)  7-9 months 
E)  1-4 weeks

Question 20

Which of the following is present in the fetus but not in an adult human?

Accepted Answer

A)  ductus arteriosus 
B)  pulmonary vein 
C)  left atrium 
D)  superior vena cava 
E)  internal iliac artery 
A)  ductus arteriosus 
B)  pulmonary vein 
C)  left atrium 
D)  superior vena cava 
E)  internal iliac artery

Exam 18: Development and Aging

When does the heart begin to develop?

The ________ is the first embryonic membrane to appear,and it is the first site of ________.

The white,greasy,cheeselike substance that covers the fetus's skin is called

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

Most birth defects are due to the inheritance of an abnormal number of chromosomes.

Once the cortical granules release their enzymes,the corona radiata becomes the fertilization membrane.

The nervous system develops enough to permit reflex actions during which period of development?

Which of the following problems is not associated with pregnancy?

Which hypothesis of aging involves mitochondria?

Fetal development includes the third through ninth months of development.

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

The umbilical arteries carry

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

Embryonic development begins with

Where are the mitochondria located in the sperm?

Which of the following defines "aging"?

Describe what occurs during cleavage,growth,morphogenesis,and differentiation.

Estrogen is responsible for the onset and continuation of labor.

When does the mother first begin to feel the fetus move?

Which of the following is present in the fetus but not in an adult human?

Exploring Life and Science

Chemistry of Life

Cell Structure and Function

Organization and Regulation of Body Systems

Cardiovascular System: Heart and Blood Vessels

Cardiovascular System: Blood

The Lymphatic and Immune Systems

Infectious Diseases

Digestive System and Nutrition

Respiratory System

Urinary System

Skeletal System

Muscular System

Nervous System

Senses

Endocrine System

Reproductive System

Patterns of Chromosome Inheritance

Cancer

Patterns of Genetic Inheritance

Dna Biology and Technology

Human Evolution

Ecology and the Nature of Ecosystems

Human Interactions With the Biosphere

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The is the first embryonic membrane to appear,and it is the first site of .