Question 1

The structures that connect neighboring cardiac muscle cells to ensure rapid electrical conduction are

Accepted Answer

A)  desmosomes. 
B)  intercalated discs. 
C)  synapses. 
D)  endothelial cells. 
E)  smooth muscle cells. 
A)  desmosomes. 
B)  intercalated discs. 
C)  synapses. 
D)  endothelial cells. 
E)  smooth muscle cells. B

Question 2

The pulmonary circulation

Accepted Answer

A)  involves the hepatic portal vein. 
B)  moves oxygen-rich blood to the kidneys. 
C)  includes the coronary arteries. 
D)  leads to, through, and from the lungs. 
E)  leads to, through, and from the heart. 
A)  involves the hepatic portal vein. 
B)  moves oxygen-rich blood to the kidneys. 
C)  includes the coronary arteries. 
D)  leads to, through, and from the lungs. 
E)  leads to, through, and from the heart. D

Question 3

The machine used to "shock" a heart that has stopped beating back to life is called a(n)

Accepted Answer

A)  pacemaker. 
B)  antiarrhythmia generator. 
C)  defibrillator. 
D)  electrocardiogram. 
E)  electrocardiograph. 
A)  pacemaker. 
B)  antiarrhythmia generator. 
C)  defibrillator. 
D)  electrocardiogram. 
E)  electrocardiograph. C

Question 4

Which vein collects blood from the head, arms and chest?
A) inferior vena cava
B) left pulmonary vein
C) right pulmonary vein
D) left pulmonary vein
E) superior vena cava

Accepted Answer

The answer of Which vein collects blood from the head,...

Question 5

Which of the following is NOT a risk factor for hypertension?

Accepted Answer

A)  smoking 
B)  obesity 
C)  chronic stress 
D)  a diet high in fruits, vegetables and dairy products 
E)  excessive salt intake 
A)  smoking 
B)  obesity 
C)  chronic stress 
D)  a diet high in fruits, vegetables and dairy products 
E)  excessive salt intake

Question 6

The greatest drop in blood pressure occurs in the

Accepted Answer

A)  arteries. 
B)  arterioles. 
C)  capillaries. 
D)  venules. 
E)  veins. 
A)  arteries. 
B)  arterioles. 
C)  capillaries. 
D)  venules. 
E)  veins.

Question 7

The letters "CPR" stand for

Accepted Answer

A)  cardiopulmonary resuscitation. 
B)  cardiac pressure regulation. 
C)  coronary pump resuscitation. 
D)  cardiovascular prime rhythm. 
E)  cardiopulmonary regulation. 
A)  cardiopulmonary resuscitation. 
B)  cardiac pressure regulation. 
C)  coronary pump resuscitation. 
D)  cardiovascular prime rhythm. 
E)  cardiopulmonary regulation.

Question 8

The heart

Accepted Answer

A)  will contract as a result of stimuli from the sinoatrial node. 
B)  contracts only as a result of nerve stimulation from the central nervous system. 
C)  is activated primarily through the autonomic nervous system. 
D)  pulse is primarily under the control of the atrioventricular node. 
E)  is completely independent of all nervous control. 
A)  will contract as a result of stimuli from the sinoatrial node. 
B)  contracts only as a result of nerve stimulation from the central nervous system. 
C)  is activated primarily through the autonomic nervous system. 
D)  pulse is primarily under the control of the atrioventricular node. 
E)  is completely independent of all nervous control.

Question 9

Many public places are now equipped with AEDs. What does this stand for?

Accepted Answer

A)  automated emergency dialysers 
B)  automatic electrical defibrillators 
C)  automatic emergency deionizers 
D)  automated external defibrillators 
E)  anatomic electrical demagnetizers 
A)  automated emergency dialysers 
B)  automatic electrical defibrillators 
C)  automatic emergency deionizers 
D)  automated external defibrillators 
E)  anatomic electrical demagnetizers

Question 10

The greatest volume of blood is found in the

Accepted Answer

A)  aorta and arteries. 
B)  capillaries. 
C)  veins. 
D)  lungs. 
E)  heart. 
A)  aorta and arteries. 
B)  capillaries. 
C)  veins. 
D)  lungs. 
E)  heart.

Question 11

An early sign of plaque formation in coronary arteries is

Accepted Answer

A)  a heart attack. 
B)  hypertension. 
C)  hypotension. 
D)  angina pectoris. 
E)  rapid heart beat. 
A)  a heart attack. 
B)  hypertension. 
C)  hypotension. 
D)  angina pectoris. 
E)  rapid heart beat.

Question 12

An artificial pacemaker supplements the actions of

Accepted Answer

A)  sympathetic nerves. 
B)  the atrioventricular node. 
C)  the medulla oblongata. 
D)  the sinoatrial node. 
E)  the heart muscle itself. 
A)  sympathetic nerves. 
B)  the atrioventricular node. 
C)  the medulla oblongata. 
D)  the sinoatrial node. 
E)  the heart muscle itself.

Question 13

Which disease may develop when microbes enter the blood stream directly via IV drug use or dental work?

Accepted Answer

A)  rheumatic fever 
B)  hypertension 
C)  endocarditis 
D)  myocarditis 
E)  malignant melanoma 
A)  rheumatic fever 
B)  hypertension 
C)  endocarditis 
D)  myocarditis 
E)  malignant melanoma

Question 14

The aorta leaves the

Accepted Answer

A)  left atrium. 
B)  right atrium. 
C)  left ventricle. 
D)  right ventricle. 
E)  the right and left ventricles. 
A)  left atrium. 
B)  right atrium. 
C)  left ventricle. 
D)  right ventricle. 
E)  the right and left ventricles.

Question 15

The receiving zone of a vertebrate heart is

Accepted Answer

A)  a plaque. 
B)  the aorta. 
C)  an atrium. 
D)  a capillary bed. 
E)  a valve. 
A)  a plaque. 
B)  the aorta. 
C)  an atrium. 
D)  a capillary bed. 
E)  a valve.

Question 16

Which amino acid has been implicated in the formation of artery-blocking plaques?

Accepted Answer

A)  isoleucine 
B)  threonine 
C)  homocysteine 
D)  valine 
E)  phenylalanine 
A)  isoleucine 
B)  threonine 
C)  homocysteine 
D)  valine 
E)  phenylalanine

Question 17

What factor has been implicated as a trigger for the formation of artery-blocking plaques?

Accepted Answer

A)  allergies 
B)  inflammation 
C)  hypertension 
D)  blood clots 
E)  low blood fats 
A)  allergies 
B)  inflammation 
C)  hypertension 
D)  blood clots 
E)  low blood fats

Question 18

Which system picks up excess extracellular fluid and reclaimable solutes and returns them to the cardiovascular system?

Accepted Answer

A)  urinary 
B)  digestive 
C)  reproductive 
D)  venous 
E)  lymphatic 
A)  urinary 
B)  digestive 
C)  reproductive 
D)  venous 
E)  lymphatic

Question 19

Which bacteria cause Lyme disease?

Accepted Answer

A)  Streptococcus pyogenes 
B)  Staphylococcus aureus 
C)  Escherichia coli 
D)  Borrellia burgdorferi 
E)  Bordetella recurrentis 
A)  Streptococcus pyogenes 
B)  Staphylococcus aureus 
C)  Escherichia coli 
D)  Borrellia burgdorferi 
E)  Bordetella recurrentis

Question 20

Which of the following statements is false?

Accepted Answer

A)  A heart will stop beating when the nerves to the heart are severed. 
B)  Some cardiac muscle cells are self-excitatory. 
C)  The pacemaker of the heart is the sinoatrial node. 
D)  Cardiac muscles join end to end to allow rapid communication. 
E)  Cardiac muscles contract essentially in unison. 
A)  A heart will stop beating when the nerves to the heart are severed. 
B)  Some cardiac muscle cells are self-excitatory. 
C)  The pacemaker of the heart is the sinoatrial node. 
D)  Cardiac muscles join end to end to allow rapid communication. 
E)  Cardiac muscles contract essentially in unison.

Exam 7: Circulation: the Heart and Blood Vessels

The structures that connect neighboring cardiac muscle cells to ensure rapid electrical conduction are

The pulmonary circulation

The machine used to "shock" a heart that has stopped beating back to life is called a(n)

Which vein collects blood from the head, arms and chest? A) inferior vena cava B) left pulmonary vein C) right pulmonary vein D) left pulmonary vein E) superior vena cava

Which of the following is NOT a risk factor for hypertension?

The greatest drop in blood pressure occurs in the

The letters "CPR" stand for

The heart

Many public places are now equipped with AEDs. What does this stand for?

The greatest volume of blood is found in the

An early sign of plaque formation in coronary arteries is

An artificial pacemaker supplements the actions of

Which disease may develop when microbes enter the blood stream directly via IV drug use or dental work?

The aorta leaves the

The receiving zone of a vertebrate heart is

Which amino acid has been implicated in the formation of artery-blocking plaques?

What factor has been implicated as a trigger for the formation of artery-blocking plaques?

Which system picks up excess extracellular fluid and reclaimable solutes and returns them to the cardiovascular system?

Which bacteria cause Lyme disease?

Which of the following statements is false?

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA, Genes, and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Human Impacts on the Biosphere

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