Question 1

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

Question 2

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 thriveF) A) and B)
G) A) and E)

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

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

Question 5

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

Accepted Answer

A) True 
 B)False

Question 6

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 pressureF) A) and B)
G) A) and E)

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 4-5F) A) and B)
G) B) and D)

Question 8

Embryonic development begins with

Accepted Answer

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

Question 9

Fetal development includes the third through ninth months of development.

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

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 weeksF) B) and D)
G) B) and C)

Question 12

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

Question 13

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 formationF) C) and D)
G) B) and E)

Question 14

Which of the following problems is not associated with pregnancy?

Accepted Answer

A)   lordosis
B)   lower back pain
C)   gastrointestinal reflux
D)   incontinence
E)   impotenceF) A) and D)
G) A) and C)

Question 15

When does the heart begin to develop?

Accepted Answer

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

Question 16

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

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

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 placentaF) None of the above
G) B) and D)

Question 20

Where are the mitochondria located in the sperm?

Accepted Answer

A)   tail
B)   middle piece
C)   head
D)   nucleus
E)   cell membraneF) All of the above
G) B) and D)

Exam 18: Development and Aging

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

Correct AnswerverifiedShow Answer

Embryonic development begins with

Correct AnswerverifiedShow Answer

Fetal development includes the third through ninth months of development.

Correct AnswerverifiedShow Answer

The umbilical arteries carry

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Estrogen is responsible for the onset and continuation of labor.

Correct AnswerverifiedShow Answer

Where are the mitochondria located in the sperm?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following problems is not associated with pregnancy?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When does the heart begin to develop?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which hypothesis of aging involves mitochondria?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following defines "aging"?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedCleavage is the division of the zygote f...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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Cleavage is the division of the zygote f...
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