Question 1

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 glomeruliF) A) and C)
G) C) and E)

Question 2

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 alveoliF) B) and E)
G) A) and B)

Question 3

Teratogens usually do not cause congenital anomalies.

Accepted Answer

A) True 
 B)False  False

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

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

Accepted Answer

A)   transitional
B)   premature
C)   neonatal
D)   senescence
E)   infancyF) B) and E)
G) A) and C)

Question 6

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 systemF) All of the above
G) B) and D)

Question 7

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 8

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 9

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 10

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 irisF) B) and D)
G) A) and E) C

Question 11

Which of the following does not have potentially teratogenic effects?

Accepted Answer

A)   Smoking
B)   Alcohol
C)   Infectious diseases
D)   Sunlight
E)   X-raysF) All of the above
G) A) and B)

Question 12

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

Question 13

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+F) A) and E)
G) C) and D)

Question 14

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 pregnancyF) D) and E)
G) A) and C)

Question 15

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)   blastocystF) All of the above
G) C) and D)

Question 16

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)   placentaF) A) and B)
G) C) and E)

Question 17

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 ovaleF) B) and D)
G) C) and E)

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 29: Human Development and Aging

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Teratogens usually do not cause congenital anomalies.

Correct AnswerverifiedFalse

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedFalse

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.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The digital rays of a fetus give rise to __________.

Correct AnswerverifiedC

Which of the following does not have potentially teratogenic effects?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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False

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False

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C

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

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

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