Question 1

The chorion _____ and the amnion _____.

Accepted Answer

A)  is the outer protective membrane around the embryo; is the site where an embryo is implanted into the uterus 
B)  projects into the endometrium and helps form the placenta; is a membrane that encircles a developing embryo 
C)  is the site from which primary germ layers develop; is the site from which secondary germ layers develop 
D)  is the part of the blastocyst that is not the inner cell mass; is the inner cell mass 
A)  is the outer protective membrane around the embryo; is the site where an embryo is implanted into the uterus 
B)  projects into the endometrium and helps form the placenta; is a membrane that encircles a developing embryo 
C)  is the site from which primary germ layers develop; is the site from which secondary germ layers develop 
D)  is the part of the blastocyst that is not the inner cell mass; is the inner cell mass

Question 2

The period of preactive dying takes

Accepted Answer

A)  up to six months. 
B)  up to three months. 
C)  about a month. 
D)  two weeks for cancer, two months for heart disease. 
A)  up to six months. 
B)  up to three months. 
C)  about a month. 
D)  two weeks for cancer, two months for heart disease.

Question 3

Human prenatal development takes ___ weeks.

Accepted Answer

A)  28 
B)  32 
C)  38 
D)  44 
A)  28 
B)  32 
C)  38 
D)  44

Question 4

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 5

An enzyme that sperm secretes that is important for egg penetration is

Accepted Answer

A)  hyaluronidase 
B)  collagenase 
C)  peptidase 
D)  acetylcholinesterase 
A)  hyaluronidase 
B)  collagenase 
C)  peptidase 
D)  acetylcholinesterase

Question 6

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 7

Preimplantation genetic diagnosis works because

Accepted Answer

A)  the donor and recipient are siblings and therefore they share most of their genetic material. 
B)  each cell in a human at any stage can give rise to a separate individual. 
C)  the missing genes are injected into cell nuclei of the recipient. 
D)  a cell can be removed from an 8-celled human embryo and the remaining 7 cells can continue developing. 
A)  the donor and recipient are siblings and therefore they share most of their genetic material. 
B)  each cell in a human at any stage can give rise to a separate individual. 
C)  the missing genes are injected into cell nuclei of the recipient. 
D)  a cell can be removed from an 8-celled human embryo and the remaining 7 cells can continue developing.

Question 8

Postmortem sperm retrieval is useful if

Accepted Answer

A)  a woman has inadvertently taken a teratogenic drug when pregnant. 
B)  a man is infertile. 
C)  a man dies after making it known he would want his sperm to be used to conceive a child. 
D)  a man has an incurable disease. 
A)  a woman has inadvertently taken a teratogenic drug when pregnant. 
B)  a man is infertile. 
C)  a man dies after making it known he would want his sperm to be used to conceive a child. 
D)  a man has an incurable disease.

Question 9

Changes that occur as death approaches include

Accepted Answer

A)  limbs become cool and numb. 
B)  accumulation of secretions in the respiratory tract. 
C)  blood pressure falls. 
D)  all of the above. 
A)  limbs become cool and numb. 
B)  accumulation of secretions in the respiratory tract. 
C)  blood pressure falls. 
D)  all of the above.

Question 10

The nuclei from the approaching sperm and egg are called

Accepted Answer

A)  prenuceli 
B)  mononuclei 
C)  pronuclei 
D)  gametocytes. 
A)  prenuceli 
B)  mononuclei 
C)  pronuclei 
D)  gametocytes.

The chorion _ and the amnion _.

The period of preactive dying takes

Human prenatal development takes ___ weeks.

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

An enzyme that sperm secretes that is important for egg penetration is

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

Preimplantation genetic diagnosis works because

Postmortem sperm retrieval is useful if

Changes that occur as death approaches include

The nuclei from the approaching sperm and egg are called

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

Exam 23: Pregnancy, Growth, and Development

The chorion _____ and the amnion _____.

The period of preactive dying takes

Human prenatal development takes ___ weeks.

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

An enzyme that sperm secretes that is important for egg penetration is

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

Preimplantation genetic diagnosis works because

Postmortem sperm retrieval is useful if

Changes that occur as death approaches include

The nuclei from the approaching sperm and egg are called

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

The chorion _ and the amnion _.