Question 1

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

Accepted Answer

A)  Common iliac vein 
B)  Aorta 
C)  Pancreas 
D)  Small intestine 
E)  Transverse colon 
A)  Common iliac vein 
B)  Aorta 
C)  Pancreas 
D)  Small intestine 
E)  Transverse colon

Question 2

Figure 28.2
   
Identify the labeled structure(s) in each of the following questions.
-Identify the structure indicated by Label T.

Accepted Answer

A)  Chorion 
B)  Placenta 
C)  Amnion 
D)  Parietal decidua 
E)  Yolk sac 
A)  Chorion 
B)  Placenta 
C)  Amnion 
D)  Parietal decidua 
E)  Yolk sac

Question 3

Figure 28.2
   
Identify the labeled structure(s) in each of the following questions.
-Identify the structure indicated by Label U.

Accepted Answer

A)  Mucus plug 
B)  Umbilical cord (cut) 
C)  Umbilical vein 
D)  Placenta 
E)  Body stalk 
A)  Mucus plug 
B)  Umbilical cord (cut) 
C)  Umbilical vein 
D)  Placenta 
E)  Body stalk

Question 4

Collectively, the yolk sac, chorion, amnion, and allantois are called the ________.

Accepted Answer

A)  supra-embryonic membranes 
B)  pre-fetal mass 
C)  extra-embryonic membranes 
D)  inter-embryonic membranes 
E)  None of the answers are correct. 
A)  supra-embryonic membranes 
B)  pre-fetal mass 
C)  extra-embryonic membranes 
D)  inter-embryonic membranes 
E)  None of the answers are correct.

Question 5

The fetus gains the greatest amount of weight during ________.

Accepted Answer

A)  the first three weeks of the second trimester 
B)  the entire third trimester 
C)  the entire second trimester 
D)  Weight gain is evenly distributed throughout all of the stages of development. 
E)  None of the answers are correct. 
A)  the first three weeks of the second trimester 
B)  the entire third trimester 
C)  the entire second trimester 
D)  Weight gain is evenly distributed throughout all of the stages of development. 
E)  None of the answers are correct.

Question 6

Figure 28.2
   
Identify the labeled structure(s) in each of the following questions.
-Identify the structure indicated by Label R.

Accepted Answer

A)  Chorion 
B)  Basal decidua 
C)  Amnion 
D)  Parietal decidua 
E)  Myometrium 
A)  Chorion 
B)  Basal decidua 
C)  Amnion 
D)  Parietal decidua 
E)  Myometrium

Question 7

White matter of the spinal cord develops from the ________.

Accepted Answer

A)  notochord 
B)  neuroepithelial layer 
C)  mantle layer 
D)  marginal layer 
E)  neurocoel 
A)  notochord 
B)  neuroepithelial layer 
C)  mantle layer 
D)  marginal layer 
E)  neurocoel

Question 8

Fertilization is the process whereby ________.

Accepted Answer

A)  two haploid gametes fuse 
B)  two polar bodies fuse to produce a zygote 
C)  two diploid gametes join and recombine genetically 
D)  the cells of a newly produced embryo divide 
E)  None of the answers are correct 
A)  two haploid gametes fuse 
B)  two polar bodies fuse to produce a zygote 
C)  two diploid gametes join and recombine genetically 
D)  the cells of a newly produced embryo divide 
E)  None of the answers are correct

Question 9

Figure 28.2
   
Identify the labeled structure(s) in each of the following questions.
-Identify the structure indicated by Label B.

Accepted Answer

A)  Chorion 
B)  Capsular decidua 
C)  Amnion 
D)  Basal decidua 
E)  Myometrium 
A)  Chorion 
B)  Capsular decidua 
C)  Amnion 
D)  Basal decidua 
E)  Myometrium

Question 10

The cavity separating the inner cell mass from the trophoblast is the ________.

Accepted Answer

A)  blastocoele 
B)  amniotic cavity 
C)  lacuna 
D)  epiblast 
E)  hypoblast 
A)  blastocoele 
B)  amniotic cavity 
C)  lacuna 
D)  epiblast 
E)  hypoblast

Question 11

During the initial stages of fertilization, sperm release hyaluronidase from their acrosome, which breaks down the bonds between adjacent follicle cells.

Accepted Answer

A) True 
 B)False

Question 12

When implantation begins, the trophoblastic cells of the blastocyst are responsible for providing food to the developing embryo.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following changes occur during the third trimester?

Accepted Answer

A)  Completion of pulmonary branching and alveolar formation. 
B)  Formation of the plicae of the intestines. 
C)  Completion of the formation of the nephrons. 
D)  In male fetuses, the testes descend. 
E)  All of the answers are correct. 
A)  Completion of pulmonary branching and alveolar formation. 
B)  Formation of the plicae of the intestines. 
C)  Completion of the formation of the nephrons. 
D)  In male fetuses, the testes descend. 
E)  All of the answers are correct.

Question 14

In the process of development, a human being forms in the womb for about 9 months and grows to maturity in 15 to 20 years.

Accepted Answer

A) True 
 B)False

Question 15

Figure 28.2
   
Identify the labeled structure(s) in each of the following questions.
-Identify the structures indicated by Label P.

Accepted Answer

A)  Trophoblasts 
B)  Chorionic villi 
C)  Maternal blood vessels 
D)  Umbilical arteries 
E)  Lacunae 
A)  Trophoblasts 
B)  Chorionic villi 
C)  Maternal blood vessels 
D)  Umbilical arteries 
E)  Lacunae

Question 16

Figure 28.2
   
Identify the labeled structure(s) in each of the following questions.
-Identify the structure indicated by Label G.

Accepted Answer

A)  Parietal decidua 
B)  Placenta 
C)  Capsular decidua 
D)  Myometrium 
E)  Mucus plug 
A)  Parietal decidua 
B)  Placenta 
C)  Capsular decidua 
D)  Myometrium 
E)  Mucus plug

Question 17

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

Accepted Answer

A)  Falciform ligament 
B)  Greater omentum 
C)  Notochord 
D)  Liver 
E)  None of the answers are correct. 
A)  Falciform ligament 
B)  Greater omentum 
C)  Notochord 
D)  Liver 
E)  None of the answers are correct.

Question 18

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

Accepted Answer

A)  Notochord 
B)  Neural tube 
C)  Dorsal mesentery 
D)  Ventral mesentery 
E)  Aorta 
A)  Notochord 
B)  Neural tube 
C)  Dorsal mesentery 
D)  Ventral mesentery 
E)  Aorta

Question 19

After oocyte activation and completion of meiosis, the female nuclear material reorganizes as the ________.

Accepted Answer

A)  syncytiotrophoblast 
B)  female pronucleus 
C)  cytotrophoblast 
D)  male pronucleus 
E)  primary oocyte 
A)  syncytiotrophoblast 
B)  female pronucleus 
C)  cytotrophoblast 
D)  male pronucleus 
E)  primary oocyte

Question 20

The connection between the embryo and the chorion is the ________.

Accepted Answer

A)  umbilical cord 
B)  yolk stalk 
C)  body stalk 
D)  capsular decidua 
E)  basal decidua 
A)  umbilical cord 
B)  yolk stalk 
C)  body stalk 
D)  capsular decidua 
E)  basal decidua

Exam 28: Embryology and Human Development

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

Figure 28.2 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label T.

Figure 28.2 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label U.

Collectively, the yolk sac, chorion, amnion, and allantois are called the ________.

The fetus gains the greatest amount of weight during ________.

Figure 28.2 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label R.

White matter of the spinal cord develops from the ________.

Fertilization is the process whereby ________.

Figure 28.2 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label B.

The cavity separating the inner cell mass from the trophoblast is the ________.

During the initial stages of fertilization, sperm release hyaluronidase from their acrosome, which breaks down the bonds between adjacent follicle cells.

When implantation begins, the trophoblastic cells of the blastocyst are responsible for providing food to the developing embryo.

Which of the following changes occur during the third trimester?

In the process of development, a human being forms in the womb for about 9 months and grows to maturity in 15 to 20 years.

Figure 28.2 Identify the labeled structure(s) in each of the following questions. -Identify the structures indicated by Label P.

Figure 28.2 Identify the labeled structure(s) in each of the following questions. -Identify the structure indicated by Label G.

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

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

After oocyte activation and completion of meiosis, the female nuclear material reorganizes as the ________.

The connection between the embryo and the chorion is the ________.

Foundations: An Introduction to Anatomy

Foundations: The Cell

Foundations: Tissues and Early Embryology

The Integumentary System

The Skeletal System: Osseous Tissue and Skeletal Structure

The Skeletal System: Axial Division

The Skeletal System: Appendicular Division

The Skeletal System: Articulations

The Muscular System: Skeletal Muscle Tissue and Muscle Organization

The Muscular System: Axial Musculature

The Muscular System: Appendicular Musculature

Surface Anatomy and Cross-Sectional Anatomy

The Nervous System: Neural Tissue

The Nervous System: The Spinal Cord and Spinal Nerves

The Nervous System: Sensory and Motor Tracts of the Spinal Cord

The Nervous System: The Brain and Cranial Nerves

The Nervous System: Autonomic Nervous System

The Nervous System: General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: The Heart

The Cardiovascular System: Vessels and Circulation

The Lymphatic System

The Respiratory System

The Digestive System

The Urinary System

The Reproductive System

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