Question 1

During the embryonic stage, the primary germ layers develop from the

Accepted Answer

A)  placenta. 
B)  blastocyst. 
C)  embryonic disc. 
D)  morula. 
A)  placenta. 
B)  blastocyst. 
C)  embryonic disc. 
D)  morula.

Question 2

In an adult heart, the previous location of the foramen ovale is marked by a depression called the _____ _____.

Accepted Answer

The answer of In an adult heart, the previous location...

Question 3

Factors that can cause congenital malformations by affecting an embryo during its periods of rapid growth and development are called teratogens.

Accepted Answer

A) True 
 B)False

Question 4

Some factors that help to stimulate the newborn's first breath are increasing CO2, decreasing pH, decreasing O2, decreasing body temperature, and mechanical stimulation.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following is (are) true in regard to 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)  All of the above 
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)  All of the above

Question 6

The slender projections that grow out from the trophoblast into the uterine wall are called _____ _____.

Accepted Answer

The answer of The slender projections that grow out from...

Question 7

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 8

The term "newborn" refers to the period from birth through _____, whereas the term "infant" refers to the period from _____.

Accepted Answer

A)  3 months; 3 months to 6 months 
B)  the first four weeks; the first month to 1 year 
C)  one week; the second week through the second year 
D)  the first year; the first year to the second year 
A)  3 months; 3 months to 6 months 
B)  the first four weeks; the first month to 1 year 
C)  one week; the second week through the second year 
D)  the first year; the first year to the second year

Question 9

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 10

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

Accepted Answer

A) True 
 B)False

Question 11

Teratogens are substances that

Accepted Answer

A)  stimulate embryonic growth. 
B)  cause congenital malformations. 
C)  protect against infections. 
D)  cause genetic disease. 
A)  stimulate embryonic growth. 
B)  cause congenital malformations. 
C)  protect against infections. 
D)  cause genetic disease.

Question 12

Monica takes the drug Accutane throughout her pregnancy, and her child has birth defects, due to the exposure. Accutane is a(n)

Accepted Answer

A)  estrogen. 
B)  mutagen. 
C)  teratogen. 
D)  carcinogen. 
A)  estrogen. 
B)  mutagen. 
C)  teratogen. 
D)  carcinogen.

Question 13

Amniotic fluid

Accepted Answer

A)  stores nutrients for the fetus. 
B)  absorbs wastes the fetus excretes. 
C)  protects the embryo against being jarred by movements. 
D)  provides nutrients to the fetus from the maternal part of the placenta. 
A)  stores nutrients for the fetus. 
B)  absorbs wastes the fetus excretes. 
C)  protects the embryo against being jarred by movements. 
D)  provides nutrients to the fetus from the maternal part of the placenta.

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

Embryonic stem cells are derived from the

Accepted Answer

A)  outer cell mass of the morula. 
B)  inner cell mass of the blastocyst. 
C)  middle layer of the zygote. 
D)  trophoblast. 
A)  outer cell mass of the morula. 
B)  inner cell mass of the blastocyst. 
C)  middle layer of the zygote. 
D)  trophoblast.

Question 16

The ductus arteriosus allows fetal blood to bypass the lungs.

Accepted Answer

A) True 
 B)False

Question 17

The umbilical cord contains two umbilical veins.

Accepted Answer

A) True 
 B)False

Question 18

A blastomere is a _____ and a blastocyst is _____.

Accepted Answer

A)  hollow ball of cells; a cell resulting from cleavage 
B)  fetal organ produced by cleavage; an embryonic organ produced by cleavage 
C)  fetal membrane; an embryonic membrane 
D)  cell produced by cleavage; a hollow ball of cells 
A)  hollow ball of cells; a cell resulting from cleavage 
B)  fetal organ produced by cleavage; an embryonic organ produced by cleavage 
C)  fetal membrane; an embryonic membrane 
D)  cell produced by cleavage; a hollow ball of cells

Question 19

In fetal circulation the descending aorta carries the less oxygenated blood from the _________.

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 20

The hormone oxytocin aids the birth process by stimulating

Accepted Answer

A)  fetal muscular movements. 
B)  uterine wall contractions. 
C)  an increase in progesterone secretion. 
D)  an increase in estrogen secretion. 
A)  fetal muscular movements. 
B)  uterine wall contractions. 
C)  an increase in progesterone secretion. 
D)  an increase in estrogen secretion.

Exam 23: Pregnancy, Growth, and Development

During the embryonic stage, the primary germ layers develop from the

In an adult heart, the previous location of the foramen ovale is marked by a depression called the _____ _____.

Factors that can cause congenital malformations by affecting an embryo during its periods of rapid growth and development are called teratogens.

Some factors that help to stimulate the newborn's first breath are increasing CO2, decreasing pH, decreasing O2, decreasing body temperature, and mechanical stimulation.

Which of the following is (are) true in regard to the fetal stage of development?

The slender projections that grow out from the trophoblast into the uterine wall are called _____ _____.

Which of the following is a function of hCG?

The term "newborn" refers to the period from birth through _____, whereas the term "infant" refers to the period from _____.

Which of the following is not a characteristic of childhood?

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

Teratogens are substances that

Monica takes the drug Accutane throughout her pregnancy, and her child has birth defects, due to the exposure. Accutane is a(n)

Amniotic fluid

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

Embryonic stem cells are derived from the

The ductus arteriosus allows fetal blood to bypass the lungs.

The umbilical cord contains two umbilical veins.

A blastomere is a _____ and a blastocyst is _____.

In fetal circulation the descending aorta carries the less oxygenated blood from the _________.

The hormone oxytocin aids the birth process by stimulating

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: Division 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-Based Balance

Reproductive Systems

Genetics and Genomics

Filters

In an adult heart, the previous location of the foramen ovale is marked by a depression called the _ _.

Some factors that help to stimulate the newborn's first breath are increasing CO₂, decreasing pH, decreasing O₂, decreasing body temperature, and mechanical stimulation.

The slender projections that grow out from the trophoblast into the uterine wall are called _ _.

The term "newborn" refers to the period from birth through _, whereas the term "infant" refers to the period from _.

A blastomere is a _ and a blastocyst is _.