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 B)
G) B) and E)

Question 2

Which of the following occurs during the embryonic stage of development?

Accepted Answer

A)   Chorion appears.
B)   Nose, eyes, and ear become noticeable.
C)   Testes descend into scrotum.
D)   Heartbeat can be heard.
E)   Fingernails appear.F) C) and D)
G) A) and C)

Question 3

What structure produces progesterone and estrogen during pregnancy?

Accepted Answer

A)   placenta
B)   hypothalamus
C)   anterior pituitary
D)   posterior pituitary
E)   ovariesF) A) and B)
G) None of the above

Question 4

Fetal development includes the third through ninth months of development.

Accepted Answer

A) True 
 B)False

Question 5

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 C)
G) A) and B)

Question 6

When the uterus begins to contract, it is almost time for the baby to be born.

Accepted Answer

A) True 
 B)False

Question 7

The 4 cell stage of development is almost twice the size of the 2 cell stage of development.

Accepted Answer

A) True 
 B)False

Question 8

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 retentionF) A) and E)
G) C) and D)

Question 9

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

Accepted Answer

A)   More neural cells are lost as we age.
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.F) C) and D)
G) A) and B)

Question 10

Which of the following develops into the male genital ducts?

Accepted Answer

A)   epididymis
B)   urogenital groove
C)   cloaca
D)   Mullerian ducts
E)   Wolffian ductsF) B) and D)
G) B) and C)

Question 11

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) A) and B)
G) A) and C)

Question 12

The sex of an individual is determined at the moment of fertilization.

Accepted Answer

A) True 
 B)False

Question 13

Which hypothesis of aging involves mitochondria?

Accepted Answer

A)   genetic in origin
B)   whole-body process
C)   extrinsic factors
D)   damage accumulation
E)   external factorsF) B) and C)
G) A) and E)

Question 14

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

Question 15

Which of these is associated with pre-embryonic development?

Accepted Answer

A)   morula
B)   embryonic disk
C)   gastrulation
D)   primary germ layers
E)   formation of the umbilical cordF) C) and D)
G) A) and B)

Question 16

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 membraneF) A) and B)
G) A) and C)

Question 17

Does a woman ovulate during pregnancy? Why or why not?

Accepted Answer

A)   No. She has no more follicles in the ovaries.
B)   No, because negative feedback on the hypothalamus prevents new follicles from maturing.
C)   No, because the developing embryo prevents any new blastulas from implanting.
D)   Yes, because the uterine cycle continues to function.
E)   Yes, because the ovarian cycle continues to function.F) A) and B)
G) A) and C)

Question 18

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

Question 19

Which of the following gives the correct order of layers the sperm crosses when entering the egg?

Accepted Answer

A)   corona radiata, zona pellucida, oocyte plasma membrane
B)   zona pellucida, oocyte plasma membrane, corona radiata
C)   oocyte plasma membrane, corona radiata, zona pellucida
D)   corona radiata, oocyyte plasma membrane, zona pellucida
E)   zona pellucida, corona radiata, oocyte plasma membraneF) C) and D)
G) A) and B)

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 17: Human Development and Aging

What occurs during stage 3 of labor?

Correct AnswerverifiedShow Answer

Which of the following develops into the male genital ducts?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When the uterus begins to contract, it is almost time for the baby to be born.

Correct AnswerverifiedShow Answer

Which of these is associated with pre-embryonic development?

Correct AnswerverifiedShow Answer

The sex of an individual is determined at the moment of fertilization.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is not associated with the egg?

Correct AnswerverifiedShow Answer

The umbilical arteries carry

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Does a woman ovulate during pregnancy? Why or why not?

Correct AnswerverifiedShow Answer

Which of the following gives the correct order of layers the sperm crosses when entering the egg?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which hypothesis of aging involves mitochondria?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What structure produces progesterone and estrogen during pregnancy?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Fetal development includes the third through ninth months of development.

Correct AnswerverifiedShow Answer

The 4 cell stage of development is almost twice the size of the 2 cell stage of development.

Correct AnswerverifiedShow Answer

Which of the following occurs during the embryonic stage of development?

Correct AnswerverifiedShow Answer

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