Question 1

Teratogens usually do not cause congenital anomalies.

Accepted Answer

A) True 
 B)False  False

Question 2

The digital rays of a fetus give rise to __________.

Accepted Answer

A)  arms and legs 
B)  ribs and intercostal muscles 
C)  fingers and toes 
D)  extensor digitorum muscles 
E)  radial muscles of the iris 
A)  arms and legs 
B)  ribs and intercostal muscles 
C)  fingers and toes 
D)  extensor digitorum muscles 
E)  radial muscles of the iris C

Question 3

The slow block refers to the mechanism that prevents fertilization of another egg when one is already pregnant.

Accepted Answer

A) True 
 B)False  False

Question 4

The fetus deposits fat in its subcutaneous tissue in the 7th month of gestation.

Accepted Answer

A) True 
 B)False

Question 5

Senescence begins at different ages and progresses at different rates in different organ systems.

Accepted Answer

A) True 
 B)False

Question 6

The _________ begins to develop about 11 days after conception,and is the sole source of fetal nutrition from the end of week 12 until birth.

Accepted Answer

A)  yolk sac 
B)  placenta 
C)  amnion 
D)  trophoblast 
E)  blastocyst 
A)  yolk sac 
B)  placenta 
C)  amnion 
D)  trophoblast 
E)  blastocyst

Question 7

A person in his or her 90's can increase muscle strength by two or three times with 40 minutes of isometric exercise per week.

Accepted Answer

A) True 
 B)False

Question 8

Urine retention is a greater problem for elderly men than for elderly women because men __________.

Accepted Answer

A)  can develop benign prostatic hyperplasia 
B)  have larger bladders 
C)  have weaker urinary sphincters 
D)  have narrower ureters 
E)  have fewer glomeruli 
A)  can develop benign prostatic hyperplasia 
B)  have larger bladders 
C)  have weaker urinary sphincters 
D)  have narrower ureters 
E)  have fewer glomeruli

Question 9

The first 6 weeks of postpartum life constitute the __________ period.

Accepted Answer

A)  transitional 
B)  premature 
C)  neonatal 
D)  senescence 
E)  infancy 
A)  transitional 
B)  premature 
C)  neonatal 
D)  senescence 
E)  infancy

Question 10

In the fast block to polyspermy,binding of sperm opens up __________ channels,which depolarizes the egg membrane and __________.

Accepted Answer

A)  Na+;prevents the entrance of any more sperm 
B)  Na+;prevents the entrance of more Na+ 
C)  Na+;prevents the entrance of Ca2+ 
D)  Ca2+;prevents the entrance of any more sperm 
E)  Ca2+;prevents the entrance of more Na+ 
A)  Na+;prevents the entrance of any more sperm 
B)  Na+;prevents the entrance of more Na+ 
C)  Na+;prevents the entrance of Ca2+ 
D)  Ca2+;prevents the entrance of any more sperm 
E)  Ca2+;prevents the entrance of more Na+

Question 11

Infant respiratory distress syndrome (IRDS)is caused by __________.

Accepted Answer

A)  production of very thick respiratory mucus 
B)  deficiency of pulmonary surfactant 
C)  underdeveloped respiratory epithelium 
D)  pulmonary edema 
E)  overinflated alveoli 
A)  production of very thick respiratory mucus 
B)  deficiency of pulmonary surfactant 
C)  underdeveloped respiratory epithelium 
D)  pulmonary edema 
E)  overinflated alveoli

Question 12

Trophoblastic nutrition refers to the nutrition of the conceptus before it implants.

Accepted Answer

A) True 
 B)False

Question 13

Life expectancy has steadily increased in the last century,whereas life span has not.

Accepted Answer

A) True 
 B)False

Question 14

In fetal circulation,the __________ bypasses the liver and the __________ bypasses the lungs.

Accepted Answer

A)  ligamentum venosum;ligamentum arteriosum 
B)  foramen ovale;ductus venosus 
C)  ductus arteriosus;ductus venosus 
D)  ductus venosus;ductus arteriosus 
E)  ligamentum arteriosum;foramen ovale 
A)  ligamentum venosum;ligamentum arteriosum 
B)  foramen ovale;ductus venosus 
C)  ductus arteriosus;ductus venosus 
D)  ductus venosus;ductus arteriosus 
E)  ligamentum arteriosum;foramen ovale

Question 15

Which of the following is not a known cause of congenital anomalies?

Accepted Answer

A)  Infectious disease in the mother during pregnancy 
B)  A genetic disorder 
C)  Exposure to teratogens during pregnancy 
D)  Smoking during lactation 
E)  Smoking during pregnancy 
A)  Infectious disease in the mother during pregnancy 
B)  A genetic disorder 
C)  Exposure to teratogens during pregnancy 
D)  Smoking during lactation 
E)  Smoking during pregnancy

Question 16

Which of the following does not have potentially teratogenic effects?

Accepted Answer

A)  Smoking 
B)  Alcohol 
C)  Infectious diseases 
D)  Sunlight 
E)  X-rays 
A)  Smoking 
B)  Alcohol 
C)  Infectious diseases 
D)  Sunlight 
E)  X-rays

Question 17

Only autosomal trisomies involving chromosomes 13,18,and 21 are survivable.Why would this be?

Accepted Answer

A)  These are relatively short chromosomes. 
B)  These are relatively long chromosomes. 
C)  These are relatively gene-poor chromosomes. 
D)  These are redundant chromosomes. 
E)  These chromosomes have no genes. 
A)  These are relatively short chromosomes. 
B)  These are relatively long chromosomes. 
C)  These are relatively gene-poor chromosomes. 
D)  These are redundant chromosomes. 
E)  These chromosomes have no genes.

Question 18

To some extent,the heat loss of the neonate is compensated for by the thermal insulation provided by brown fat.

Accepted Answer

A) True 
 B)False

Question 19

The __________ is an embryonic membrane that serves as the origin of the first blood and germ cells.

Accepted Answer

A)  yolk sac 
B)  allantois 
C)  chorion 
D)  amnion 
E)  placenta 
A)  yolk sac 
B)  allantois 
C)  chorion 
D)  amnion 
E)  placenta

Question 20

Which of the following organ systems shows the greatest anatomical change in the transitional period after birth?

Accepted Answer

A)  Muscular system 
B)  Integumentary system 
C)  Skeletal system 
D)  Circulatory system 
E)  Nervous system 
A)  Muscular system 
B)  Integumentary system 
C)  Skeletal system 
D)  Circulatory system 
E)  Nervous system

Exam 29: Human Development and Aging

Teratogens usually do not cause congenital anomalies.

The digital rays of a fetus give rise to __________.

The slow block refers to the mechanism that prevents fertilization of another egg when one is already pregnant.

The fetus deposits fat in its subcutaneous tissue in the 7th month of gestation.

Senescence begins at different ages and progresses at different rates in different organ systems.

The _________ begins to develop about 11 days after conception,and is the sole source of fetal nutrition from the end of week 12 until birth.

A person in his or her 90's can increase muscle strength by two or three times with 40 minutes of isometric exercise per week.

Urine retention is a greater problem for elderly men than for elderly women because men __________.

The first 6 weeks of postpartum life constitute the __________ period.

In the fast block to polyspermy,binding of sperm opens up __________ channels,which depolarizes the egg membrane and __________.

Infant respiratory distress syndrome (IRDS)is caused by __________.

Trophoblastic nutrition refers to the nutrition of the conceptus before it implants.

Life expectancy has steadily increased in the last century,whereas life span has not.

In fetal circulation,the __________ bypasses the liver and the __________ bypasses the lungs.

Which of the following is not a known cause of congenital anomalies?

Which of the following does not have potentially teratogenic effects?

Only autosomal trisomies involving chromosomes 13,18,and 21 are survivable.Why would this be?

To some extent,the heat loss of the neonate is compensated for by the thermal insulation provided by brown fat.

The __________ is an embryonic membrane that serves as the origin of the first blood and germ cells.

Which of the following organ systems shows the greatest anatomical change in the transitional period after birth?

Major Themes of Anatomy and Physiology

The Chemistry of Life

Cellular Form and Function

Genetics of Cellular Function

Histology

The Integumentary System

Bone Tissue

The Skeletal System

Joints

The Muscular System

Muscular Tissue

Nervous Tissue

The Spinal Cord,spinal Nerves,and Somatic Reflexes

The Brain and Cranial Nerves

The Autonomic Nervous System and Visceral Reflexes

Sense Organs

The Endocrine System

The Circulatory System: Blood

The Circulatory System: Heart

The Circulatory System: Blood Vessels and Circulation

The Lymphatic and Immune Systems

The Respiratory System

The Urinary System

Fluid, electrolyte, and Acidbase Balance

The Digestive System

Nutrition and Metabolism

The Male Reproductive System

The Female Reproductive System

Atlas a General Orientation to Human Anatomy

Filters

In the fast block to polyspermy,binding of sperm opens up channels,which depolarizes the egg membrane and .

In fetal circulation,the bypasses the liver and the bypasses the lungs.