Question 1

The foramen ovale is an opening that allows fetal blood to pass from the

Accepted Answer

A) right atrium to the left atrium. 
B) left atrium to right atrium. 
C) right ventricle to the left ventricle. 
D) left ventricle to the right ventricle. 
A) right atrium to the left atrium. 
B) left atrium to right atrium. 
C) right ventricle to the left ventricle. 
D) left ventricle to the right ventricle. A

Question 2

In a fetus, the umbilical arteries arise from the renal arteries.

Accepted Answer

A) True 
 B)False  False

Question 3

The inner cell mass

Accepted Answer

A) becomes part of the placental membrane. 
B) forms the amnion. 
C) becomes part of the chorion. 
D) gives rise to the embryo. 
A) becomes part of the placental membrane. 
B) forms the amnion. 
C) becomes part of the chorion. 
D) gives rise to the embryo. D

Question 4

The placenta allows

Accepted Answer

A) oxygen and nutrients to diffuse from maternal blood to the embryo. 
B) carbon dioxide and other wastes to diffuse from the maternal blood to the embryonic blood. 
C) maternal blood to mix with fetal blood. 
D) the fetus to enlarge without rupturing the mother's abdomen. 
A) oxygen and nutrients to diffuse from maternal blood to the embryo. 
B) carbon dioxide and other wastes to diffuse from the maternal blood to the embryonic blood. 
C) maternal blood to mix with fetal blood. 
D) the fetus to enlarge without rupturing the mother's abdomen.

Question 5

Which of the following is a function of hCG?

Accepted Answer

A) It breaks down the corpus luteum. 
B) It helps protect the blastocyst against being rejected. 
C) It prevents the developing placenta from secreting hormones. 
D) It stimulates the release of enzymes that enable the blastocyst to implant into the endometrium. 
A) It breaks down the corpus luteum. 
B) It helps protect the blastocyst against being rejected. 
C) It prevents the developing placenta from secreting hormones. 
D) It stimulates the release of enzymes that enable the blastocyst to implant into the endometrium.

Question 6

In the fetal circulation, blood from the ________ flows directly into the descending aorta.

Accepted Answer

A) foramen ovale 
B) ductus arteriosus 
C) ligamentum arteriosum 
D) ductus venosus 
A) foramen ovale 
B) ductus arteriosus 
C) ligamentum arteriosum 
D) ductus venosus

Question 7

The placenta is composed of tissues from the

Accepted Answer

A) mother only. 
B) embryo only. 
C) mother and embryo. 
D) chorion only. 
A) mother only. 
B) embryo only. 
C) mother and embryo. 
D) chorion only.

Question 8

As a result of the foramen ovale, blood is allowed to bypass the

Accepted Answer

A) aorta. 
B) liver. 
C) lungs. 
D) kidneys. 
A) aorta. 
B) liver. 
C) lungs. 
D) kidneys.

Question 9

Which of the following is NOT true about the fetal stage of development?

Accepted Answer

A) It begins 8 weeks after fertilization. 
B) The organ systems are mostly formed, although immature. 
C) The head is disproportionately large compared to the rest of the body at the beginning of the stage. 
D) It includes the blastocyst and morula stages. 
A) It begins 8 weeks after fertilization. 
B) The organ systems are mostly formed, although immature. 
C) The head is disproportionately large compared to the rest of the body at the beginning of the stage. 
D) It includes the blastocyst and morula stages.

Question 10

Repair enzymes correct

Accepted Answer

A) the degeneration of collagen and elastin. 
B) mutations that occur when DNA replicates. 
C) free radical build-up. 
D) lipofuscin build-up. 
A) the degeneration of collagen and elastin. 
B) mutations that occur when DNA replicates. 
C) free radical build-up. 
D) lipofuscin build-up.

Question 11

The implantation of the blastocyst results from

Accepted Answer

A) enzymes digesting the endometrium around the blastocyst. 
B) hyaluronic acid breaking down the myometrium around the blastocyst. 
C) hCG stimulating the growth of trophoblast blood vessels. 
D) the cessation of the reproductive cycle. 
A) enzymes digesting the endometrium around the blastocyst. 
B) hyaluronic acid breaking down the myometrium around the blastocyst. 
C) hCG stimulating the growth of trophoblast blood vessels. 
D) the cessation of the reproductive cycle.

Question 12

The fetal stage of development begins at the end of the eighth week.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following layers is considered loosely organized connective tissue?

Accepted Answer

A) Mesoderm 
B) Endoderm 
C) Ectoderm 
D) Epidermis 
A) Mesoderm 
B) Endoderm 
C) Ectoderm 
D) Epidermis

Question 14

Genetically, aging can be affected by genes that regulate

Accepted Answer

A) glucose and lipid metabolism. 
B) maintenance of the retinas. 
C) gametogenesis. 
D) melanin production. 
A) glucose and lipid metabolism. 
B) maintenance of the retinas. 
C) gametogenesis. 
D) melanin production.

Question 15

The neonatal period of development extends from birth to the end of one year.

Accepted Answer

A) True 
 B)False

Question 16

The fetus is protected from certain infections, to which the mother is immune, by

Accepted Answer

A) antibodies from the mother's immune system. 
B) antibodies from its own immune system. 
C) its own innate defenses. 
D) the extraembryonic membranes. 
A) antibodies from the mother's immune system. 
B) antibodies from its own immune system. 
C) its own innate defenses. 
D) the extraembryonic membranes.

Question 17

The major body part(s)derived from ectoderm is/are

Accepted Answer

A) nervous system and skin. 
B) muscle tissue. 
C) bone tissue. 
D) liver and pancreas. 
A) nervous system and skin. 
B) muscle tissue. 
C) bone tissue. 
D) liver and pancreas.

Question 18

The external genitalia of the fetus can be distinguished as male or female by about ________ weeks after fertilization.

Accepted Answer

A) 3 
B) 6 
C) 12 
D) 24 
A) 3 
B) 6 
C) 12 
D) 24

Question 19

Which of the following is not a characteristic of childhood?

Accepted Answer

A) Secondary teeth replacing primary teeth 
B) Becoming reproductively functional 
C) Establishing bowel control 
D) Developing a high degree of voluntary muscular control 
A) Secondary teeth replacing primary teeth 
B) Becoming reproductively functional 
C) Establishing bowel control 
D) Developing a high degree of voluntary muscular control

Question 20

Which of the following adult structures is not derived from the same primary germ layer as the others?

Accepted Answer

A) Nerves 
B) Blood vessels 
C) Muscles 
D) Bones 
A) Nerves 
B) Blood vessels 
C) Muscles 
D) Bones

Exam 23: Pregnancy, Growth, and Development

The foramen ovale is an opening that allows fetal blood to pass from the

In a fetus, the umbilical arteries arise from the renal arteries.

The inner cell mass

The placenta allows

Which of the following is a function of hCG?

In the fetal circulation, blood from the ________ flows directly into the descending aorta.

The placenta is composed of tissues from the

As a result of the foramen ovale, blood is allowed to bypass the

Which of the following is NOT true about the fetal stage of development?

Repair enzymes correct

The implantation of the blastocyst results from

The fetal stage of development begins at the end of the eighth week.

Which of the following layers is considered loosely organized connective tissue?

Genetically, aging can be affected by genes that regulate

The neonatal period of development extends from birth to the end of one year.

The fetus is protected from certain infections, to which the mother is immune, by

The major body part(s)derived from ectoderm is/are

The external genitalia of the fetus can be distinguished as male or female by about ________ weeks after fertilization.

Which of the following is not a characteristic of childhood?

Which of the following adult structures is not derived from the same primary germ layer as the others?

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Divisions of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Genetics and Genomics

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