Question 1

The stages of labor, in order, include

Accepted Answer

A)  dilation, contraction, and afterbirth 
B)  contraction, dilation, and afterbirth 
C)  dilation, contraction, and expulsion 
D)  dilation, expulsion, and afterbirth 
E)  amniotic rupture, contraction, and expulsion 
A)  dilation, contraction, and afterbirth 
B)  contraction, dilation, and afterbirth 
C)  dilation, contraction, and expulsion 
D)  dilation, expulsion, and afterbirth 
E)  amniotic rupture, contraction, and expulsion

Question 2

One hypothesis for why we age, or at least why our cells age, is that every time that mitosis occurs, ________ at the ends of chromosomes shorten, and eventually the cell runs out of these units at the ends of chromosomes.

Accepted Answer

The answer of One hypothesis for why we age, or...

Question 3

The process by which an embryo undergoes rapid changes in form and shape is called

Accepted Answer

A)  cleavage 
B)  fertilization 
C)  morphogenesis 
D)  implantation 
E)  differentiation 
A)  cleavage 
B)  fertilization 
C)  morphogenesis 
D)  implantation 
E)  differentiation

Question 4

Which cardiovascular structures in the fetus shunt blood away from the fetal lungs?

Accepted Answer

A)  foramen ovale and ductus arteriosus 
B)  foramen magnum and ductus venosus 
C)  foramen ovale and ductus venosus 
D)  umbilical artery and umbilical vein 
E)  umbilical artery and ductus venosus 
A)  foramen ovale and ductus arteriosus 
B)  foramen magnum and ductus venosus 
C)  foramen ovale and ductus venosus 
D)  umbilical artery and umbilical vein 
E)  umbilical artery and ductus venosus

Question 5

The formation of the ________ cavity and the differentiation of the embryonic disk into ectoderm and endoderm occurs at the end of the pre-embryonic period of development.

Accepted Answer

The answer of The formation of the ________ cavity and...

Question 6

All of the following can pass through a healthy placenta EXCEPT which one?

Accepted Answer

A)  water 
B)  nutrients 
C)  oxygen 
D)  some antibodies 
E)  blood cells 
A)  water 
B)  nutrients 
C)  oxygen 
D)  some antibodies 
E)  blood cells

Question 7

The process by which the blastocyst becomes buried within the endometrial lining of the uterus is called

Accepted Answer

A)  fertilization 
B)  implantation 
C)  morphogenesis 
D)  differentiation 
E)  embryonic development 
A)  fertilization 
B)  implantation 
C)  morphogenesis 
D)  differentiation 
E)  embryonic development

Question 8

There are a series of cell divisions that produce no cell growth during the first four days following fertilization. This process is referred to as

Accepted Answer

A)  cleavage 
B)  conceptus 
C)  morphogenesis 
D)  implantation 
E)  differentiation 
A)  cleavage 
B)  conceptus 
C)  morphogenesis 
D)  implantation 
E)  differentiation

Question 9

Match between columns
                        Premises: cells divide rapidly, resulting in a ball of unspecialized cells
embryo undergoes rapid change in shape and form
cells take on a certain structure and function
cells increase in number and size

Accepted Answer

The Answer of differentiation and morphogenesis and cleavage and growth is...

Question 10

In humans, fertilization usually occurs ________ after intercourse, if an egg is present.

Accepted Answer

A)  1-2 hours 
B)  3-6 days 
C)  6-24 hours 
D)  7-10 days 
E)  24-48 hours 
A)  1-2 hours 
B)  3-6 days 
C)  6-24 hours 
D)  7-10 days 
E)  24-48 hours

Question 11

During the first four days of development following fertilization, cells of the embryo undergo rapid cleavage, but the size of the embryo remains the same.

Accepted Answer

A) True 
 B)False

Question 12

As an adult human ages, the blood vessels lose their elasticity, and blood pressure drops as dilation occurs.

Accepted Answer

A) True 
 B)False

Question 13

As the onset of labor approaches, estrogen is released by the placenta, and increases the number of oxytocin receptors.

Accepted Answer

A) True 
 B)False

Question 14

For sperm to be able to penetrate the zona pellucida of the egg, enzymes are released from the ________.

Accepted Answer

The answer of For sperm to be able to penetrate...

Question 15

-The figure above shows the development of the human embryo during days 19-24. Which of the following organs forms from the ectodermal folds of the embryo?

Accepted Answer

A)  stomach and small intestine 
B)  kidneys, ureters, and bladder 
C)  heart 
D)  liver 
E)  brain and spinal cord 
A)  stomach and small intestine 
B)  kidneys, ureters, and bladder 
C)  heart 
D)  liver 
E)  brain and spinal cord

Question 16

Surgical delivery of a baby is called a cesarean delivery.

Accepted Answer

A) True 
 B)False

Question 17

Why is taking the first breath hard work for the newborn?

Accepted Answer

A)  The lungs are not elastic. 
B)  The intercostal muscles are not mature enough. 
C)  The diaphragm is inflexible. 
D)  The surface tension within the alveoli is very high. 
E)  The respiratory center in the medulla is not yet mature. 
A)  The lungs are not elastic. 
B)  The intercostal muscles are not mature enough. 
C)  The diaphragm is inflexible. 
D)  The surface tension within the alveoli is very high. 
E)  The respiratory center in the medulla is not yet mature.

Question 18

Insertion of a thin tube through the vagina into the uterus to sample fetal tissue is called ________.

Accepted Answer

chorionic

Question 19

Which one of the following organs is not fully developed in a fetus and is therefore bypassed by the ductus arteriosus?

Accepted Answer

A)  liver 
B)  pancreas 
C)  heart 
D)  lungs 
E)  bladder 
A)  liver 
B)  pancreas 
C)  heart 
D)  lungs 
E)  bladder

Question 20

The placenta is detached from the uterus during which one of the following stages of labor?

Accepted Answer

A)  placental 
B)  dilation 
C)  secretory 
D)  expulsion 
E)  afterbirth 
A)  placental 
B)  dilation 
C)  secretory 
D)  expulsion 
E)  afterbirth

Exam 21: Development and Aging

The stages of labor, in order, include

One hypothesis for why we age, or at least why our cells age, is that every time that mitosis occurs, ________ at the ends of chromosomes shorten, and eventually the cell runs out of these units at the ends of chromosomes.

The process by which an embryo undergoes rapid changes in form and shape is called

Which cardiovascular structures in the fetus shunt blood away from the fetal lungs?

The formation of the ________ cavity and the differentiation of the embryonic disk into ectoderm and endoderm occurs at the end of the pre-embryonic period of development.

All of the following can pass through a healthy placenta EXCEPT which one?

The process by which the blastocyst becomes buried within the endometrial lining of the uterus is called

There are a series of cell divisions that produce no cell growth during the first four days following fertilization. This process is referred to as

In humans, fertilization usually occurs ________ after intercourse, if an egg is present.

During the first four days of development following fertilization, cells of the embryo undergo rapid cleavage, but the size of the embryo remains the same.

As an adult human ages, the blood vessels lose their elasticity, and blood pressure drops as dilation occurs.

As the onset of labor approaches, estrogen is released by the placenta, and increases the number of oxytocin receptors.

For sperm to be able to penetrate the zona pellucida of the egg, enzymes are released from the ________.

-The figure above shows the development of the human embryo during days 19-24. Which of the following organs forms from the ectodermal folds of the embryo?

Surgical delivery of a baby is called a cesarean delivery.

Why is taking the first breath hard work for the newborn?

Insertion of a thin tube through the vagina into the uterus to sample fetal tissue is called ________.

Which one of the following organs is not fully developed in a fetus and is therefore bypassed by the ductus arteriosus?

The placenta is detached from the uterus during which one of the following stages of labor?

Human Biology, Science, and Society

The Chemistry of Living Things

Structure and Function of Cells

From Cells to Organ Systems

The Skeletal System

The Muscular System

Blood

Heart and Blood Vessels

The Immune System and Mechanisms of Defense

The Respiratory System: Exchange of Gases

The Nervous System: Integration and Control

Sensory Mechanisms

The Endocrine System

The Digestive System and Nutrition

The Urinary System

Reproductive Systems

Cell Reproduction and Differentiation

Cancer: Uncontrolled Cell Division and Differentiation

Genetics and Inheritance

DNA Technology and Genetic Engineering

Evolution and the Origins of Life

Ecosystems and Populations

Human Impacts, Biodiversity, and Environmental Issues

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