Question 1

Figure 28.5
  
Identify the labeled structure(s)  in each of the following questions.
-Identify the structure indicated by Label E.

Accepted Answer

A)   Notochord
B)   Neural tube
C)   Dorsal mesentery
D)   Coelmic cavity
E)   AortaF) A) and E)
G) All of the above

Question 2

The relatively thin portion of the endometrium that covers the embryo and separates it from the uterine cavity is called the ________.

Accepted Answer

A)   parietal decidua
B)   placenta
C)   basal decidua
D)   villi
E)   capsular deciduaF) A) and C)
G) A) and E)

Question 3

Figure 28.4
  
Identify the labeled structure(s)  in each of the following questions.
-Identify the structure indicated by Label B.

Accepted Answer

A)   Neural fold
B)   Somite
C)   Neural groove
D)   Notochord
E)   Neural plateF) A) and C)
G) B) and C)

Question 4

In what developmental stage does the human embryo implant in the wall of the uterus?

Accepted Answer

A)   as a zygote
B)   in the morula stage
C)   in the blastocyst stage
D)   in the gastrula stage
E)   during organogenesisF) A) and E)
G) C) and E)

Question 5

The blastodisc of the early embryo consists of the ________.

Accepted Answer

A)   hypoblast and the epiblast
B)   hypoblast and the trophoblast
C)   epiblast and the trophoblast
D)   hypoblast and the cytotrophoblast
E)   cytotrophoblast and the epiblastF) B) and C)
G) D) and E)

Question 6

During implantation, the developing blastocyst receives nutrients from the nutrients released from the disruption and enzymatic digestion of ________.

Accepted Answer

A)   placenta
B)   chorion
C)   endometrial glands
D)   cytotrophoblast
E)   None of the answers are correct.F) A) and D)
G) None of the above

Question 7

The amnionic cavity is filled with fluid, which functions to ________.

Accepted Answer

A)   cushion the developing embryo or fetus
B)   allow fluid to enter the placenta
C)   form the plasma portion of the blood
D)   give the embryo nourishment
E)   permit implantation to occurF) C) and E)
G) C) and D)

Question 8

The two systems with related functions that will change the most rapidly at birth, but that are still undergoing some differentiation shortly before birth, are the circulatory and ________ systems.

Accepted Answer

A)   cardiovascular
B)   integumentary
C)   reproductive
D)   digestive
E)   respiratoryF) D) and E)
G) C) and D)

Question 9

The dilation stage of labor ________.

Accepted Answer

A)   occurs about an hour after the onset of true labor
B)   includes dilation of the cervix
C)   usually is short-a few minutes in length
D)   has contractions of the uterus spread only a few minutes apart
E)   All of the answers are correct.F) A) and B)
G) C) and D)

Question 10

If two sperm penetrate two different oocytes, the two resulting offspring would be ________.

Accepted Answer

A)   identical twins
B)   one male and one female
C)   fraternal twins
D)   two males
E)   There is not enough information to answer the question.F) B) and C)
G) C) and E)

Question 11

Figure 28.5
  
Identify the labeled structure(s)  in each of the following questions.
-Identify the structure indicated by Label C.

Accepted Answer

A)   Notochord
B)   Neural tube
C)   Dorsal mesentery
D)   Ventral mesentery
E)   AortaF) C) and D)
G) B) and E)

Question 12

The chorion forms from the ________.

Accepted Answer

A)   inner cell mass
B)   placenta
C)   trophoblast
D)   ectoderm
E)   endodermF) C) and D)
G) B) and E)

Question 13

Figure 28.1
  
Identify the labeled structure(s)  in each of the following questions.
-Identify the structure indicated by Label K.

Accepted Answer

A)   Developing primary villi
B)   Lacunae
C)   Syncytiotrophoblast
D)   Cytotrophoblast
E)   Uterine glandsF) A) and D)
G) A) and C)

Question 14

In the axial skeleton, most muscle, cartilage, and connective tissues are derived from a series of mesenchymal blocks called ________.

Accepted Answer

A)   teratogens
B)   dermatomes
C)   notochords
D)   lateral plates
E)   somitesF) B) and C)
G) A) and B)

Question 15

Problems with the formation of the chorion would affect ________.

Accepted Answer

A)   the embryo's ability to produce blood cells
B)   formation of the limbs
C)   the embryo's ability to derive nutrition from the mother
D)   lung formation
E)   None of the answers are correct.F) A) and B)
G) A) and D)

Question 16

From which germ layer is the dermis of the skin derived?

Accepted Answer

A)   ectoderm
B)   mesoderm
C)   endodermD) All of the above
E) None of the above

Question 17

The neural plate is the first stage of development in the nervous system.

Accepted Answer

A) True 
 B)False

Question 18

The heart begins pumping and circulating blood in the ________ week.

Accepted Answer

A)   first
B)   third
C)   fifth
D)   eighth
E)   tenthF) A) and E)
G) C) and D)

Question 19

Figure 28.3
  
Identify the labeled structure(s)  in each of the following questions.
-Identify the structure indicated by Label K

Accepted Answer

A)   Fundus of uterus
B)   Small intestine
C)   Rectum
D)   Pancreas
E)   Transverse colonF) C) and E)
G) A) and B)

Question 20

Neural crest cells give rise to ________.

Accepted Answer

A)   melanocytes of the skin
B)   adrenal medullae
C)   Schwann cells
D)   laryngeal cartilages
E)   All of the choices are correct.F) B) and E)
G) A) and B)

Exam 28: Embryology and Human Development

Figure 28.5 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label C.

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The heart begins pumping and circulating blood in the ________ week.

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Figure 28.3 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label K

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Figure 28.1 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label K.

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From which germ layer is the dermis of the skin derived?

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Figure 28.5 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label E.

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Figure 28.4 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label B.

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The amnionic cavity is filled with fluid, which functions to ________.

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The blastodisc of the early embryo consists of the ________.

Correct AnswerverifiedShow Answer

During implantation, the developing blastocyst receives nutrients from the nutrients released from the disruption and enzymatic digestion of ________.

Correct AnswerverifiedShow Answer

The dilation stage of labor ________.

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The chorion forms from the ________.

Correct AnswerverifiedShow Answer

The relatively thin portion of the endometrium that covers the embryo and separates it from the uterine cavity is called the ________.

Correct AnswerverifiedShow Answer

Neural crest cells give rise to ________.

Correct AnswerverifiedShow Answer

If two sperm penetrate two different oocytes, the two resulting offspring would be ________.

Correct AnswerverifiedShow Answer

In the axial skeleton, most muscle, cartilage, and connective tissues are derived from a series of mesenchymal blocks called ________.

Correct AnswerverifiedShow Answer

Problems with the formation of the chorion would affect ________.

Correct AnswerverifiedShow Answer

The neural plate is the first stage of development in the nervous system.

Correct AnswerverifiedShow Answer

In what developmental stage does the human embryo implant in the wall of the uterus?

Correct AnswerverifiedShow Answer

The two systems with related functions that will change the most rapidly at birth, but that are still undergoing some differentiation shortly before birth, are the circulatory and ________ systems.

Correct AnswerverifiedShow Answer

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