Question 1

The muscular wall of the left ventricle is thicker than the right ventricle because it

Accepted Answer

A) holds a greater volume of blood. 
B) pumps blood to the lungs. 
C) pumps blood throughout the entire body. 
D) pumps blood through a smaller valve. 
E) pumps blood through the coronary circulation. 
A) holds a greater volume of blood. 
B) pumps blood to the lungs. 
C) pumps blood throughout the entire body. 
D) pumps blood through a smaller valve. 
E) pumps blood through the coronary circulation.

Question 2

Atherosclerosis is a condition in which

Accepted Answer

A) the arteries are "hardened" by calcium deposits in the walls. 
B) fatty deposits called plaques partially block the arteries. 
C) vitamin B12 is not properly absorbed due to lack of intrinsic factor. 
D) oxygen-carrying capacity of the blood is reduced. 
E) the right side of the heart pumps harder than the left side. 
A) the arteries are "hardened" by calcium deposits in the walls. 
B) fatty deposits called plaques partially block the arteries. 
C) vitamin B12 is not properly absorbed due to lack of intrinsic factor. 
D) oxygen-carrying capacity of the blood is reduced. 
E) the right side of the heart pumps harder than the left side.

Question 3

The autonomic nervous system initiates the impulses that lead to contraction of the four chambers of the heart.

Accepted Answer

A) True 
 B)False

Question 4

Oxygen is sent to the myocardium through the cardiac arteries.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following represents the correct sequence of structures in the cardiac action potential conduction system?

Accepted Answer

A) Purkinje fibers, AV node, right and left bundle branches, SA node, bundle of His 
B) AV node, SA node, bundle of His, Purkinje fibers, right and left bundle branches 
C) SA node, bundle of His, AV node, Purkinje fibers, right and left bundle branches 
D) SA node, AV node, Purkinje fibers, bundle of His, right and left bundle branches 
E) SA node, AV node, bundle of His, right and left bundle branches, Purkinje fibers 
A) Purkinje fibers, AV node, right and left bundle branches, SA node, bundle of His 
B) AV node, SA node, bundle of His, Purkinje fibers, right and left bundle branches 
C) SA node, bundle of His, AV node, Purkinje fibers, right and left bundle branches 
D) SA node, AV node, Purkinje fibers, bundle of His, right and left bundle branches 
E) SA node, AV node, bundle of His, right and left bundle branches, Purkinje fibers

Question 6

The two upper chambers of the heart are separated from each other by the

Accepted Answer

A) interventricular septum 
B) interatrial septum 
C) parietal pericardium 
D) visceral pericardium 
E) coronary sulcus 
A) interventricular septum 
B) interatrial septum 
C) parietal pericardium 
D) visceral pericardium 
E) coronary sulcus

Question 7

Valvular stenosis is a congenital condition consisting of four defects including the aorta emerging from both ventricles

Accepted Answer

A) True 
 B)False

Question 8

Which of the following is a risk factor for the development of coronary artery disease?

Accepted Answer

A) high blood pressure 
B) diabetes 
C) genetic predisposition 
D) all of the choices are correct 
E) none of the choices is correct 
A) high blood pressure 
B) diabetes 
C) genetic predisposition 
D) all of the choices are correct 
E) none of the choices is correct

Question 9

The "good" form of cholesterol that consists of lipoproteins that carry cholesterol from the tissues to the liver for elimination are called

Accepted Answer

A) chylomicrons 
B) LDLs 
C) VLDLs 
D) HDLs 
E) bile salts 
A) chylomicrons 
B) LDLs 
C) VLDLs 
D) HDLs 
E) bile salts

Question 10

Any irregular heart rhythm is an arrhythmia.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following statements accurately describes the normal orientation of the heart in the thoracic cavity?

Accepted Answer

A) Located along midline with base oriented inferiorly and apex oriented superiorly. 
B) Three-fourths of the heart lies to the right of midline. 
C) Three-fourths of the heart lies to the left of midline. 
D) Apex of the heart is directed inferiorly and to the left of midline. 
E) Two-thirds of the heart lies to the right of midline. 
A) Located along midline with base oriented inferiorly and apex oriented superiorly. 
B) Three-fourths of the heart lies to the right of midline. 
C) Three-fourths of the heart lies to the left of midline. 
D) Apex of the heart is directed inferiorly and to the left of midline. 
E) Two-thirds of the heart lies to the right of midline.

Question 12

The acronym CAD stands for

Accepted Answer

A) coronary artery disease 
B) cardiac artery disorder 
C) cholesterol arteriolar disorder 
D) chronic arterial distention 
E) coronary aneurysm disease 
A) coronary artery disease 
B) cardiac artery disorder 
C) cholesterol arteriolar disorder 
D) chronic arterial distention 
E) coronary aneurysm disease

Question 13

A fluttering of the heart is called

Accepted Answer

A) cardiac arrest 
B) a palpitation 
C) paroxysmal tachycardia 
D) ventricular fibrillation 
E) cardiomegaly 
A) cardiac arrest 
B) a palpitation 
C) paroxysmal tachycardia 
D) ventricular fibrillation 
E) cardiomegaly

Question 14

The bulk of the structure of the heart consists of the

Accepted Answer

A) epicardium 
B) endocardium 
C) myocardium 
D) serous pericardium 
E) fibrous pericardium 
A) epicardium 
B) endocardium 
C) myocardium 
D) serous pericardium 
E) fibrous pericardium

Question 15

The heart valve found between the left ventricle and the large artery exiting the left ventricle is the

Accepted Answer

A) bicuspid valve 
B) tricuspid valve 
C) aortic valve 
D) pulmonary valve 
E) mitral valve 
A) bicuspid valve 
B) tricuspid valve 
C) aortic valve 
D) pulmonary valve 
E) mitral valve

Question 16

Blood flow through the heart is driven by pressure differences between the chambers.

Accepted Answer

A) True 
 B)False

Question 17

Oxygenated blood is transported from the lungs through the pulmonary veins into the

Accepted Answer

A) left atrium 
B) left ventricle 
C) right atrium 
D) right ventricle 
E) none of the choices is correct 
A) left atrium 
B) left ventricle 
C) right atrium 
D) right ventricle 
E) none of the choices is correct

Question 18

A life-threatening condition in which excess fluid in the pericardial cavity compresses the heart leading to decreased ventricular filling is called

Accepted Answer

A) paroxysmal tachycardia 
B) myocardial infarction 
C) cardiac tamponade 
D) ventricular fibrillation 
E) atherosclerosis 
A) paroxysmal tachycardia 
B) myocardial infarction 
C) cardiac tamponade 
D) ventricular fibrillation 
E) atherosclerosis

Question 19

The normal pacemaker of the heart is the

Accepted Answer

A) Purkinje fibers 
B) bundle of His 
C) atrioventricular (AV)node 
D) sinoatrial (S
A) node 
E) atrioventricular (AV)bundle 
A) Purkinje fibers 
B) bundle of His 
C) atrioventricular (AV)node 
D) sinoatrial (S
A) node 
E) atrioventricular (AV)bundle

Question 20

All arteries contain oxygenated blood and all veins contain non-oxygenated blood.

Accepted Answer

A) True 
 B)False

Exam 15: The Cardiovascular System: Heart

The muscular wall of the left ventricle is thicker than the right ventricle because it

Atherosclerosis is a condition in which

The autonomic nervous system initiates the impulses that lead to contraction of the four chambers of the heart.

Oxygen is sent to the myocardium through the cardiac arteries.

Which of the following represents the correct sequence of structures in the cardiac action potential conduction system?

The two upper chambers of the heart are separated from each other by the

Valvular stenosis is a congenital condition consisting of four defects including the aorta emerging from both ventricles

Which of the following is a risk factor for the development of coronary artery disease?

The "good" form of cholesterol that consists of lipoproteins that carry cholesterol from the tissues to the liver for elimination are called

Any irregular heart rhythm is an arrhythmia.

Which of the following statements accurately describes the normal orientation of the heart in the thoracic cavity?

The acronym CAD stands for

A fluttering of the heart is called

The bulk of the structure of the heart consists of the

The heart valve found between the left ventricle and the large artery exiting the left ventricle is the

Blood flow through the heart is driven by pressure differences between the chambers.

Oxygenated blood is transported from the lungs through the pulmonary veins into the

A life-threatening condition in which excess fluid in the pericardial cavity compresses the heart leading to decreased ventricular filling is called

The normal pacemaker of the heart is the

All arteries contain oxygenated blood and all veins contain non-oxygenated blood.

Organization of the Human Body

Introductory Chemistry

Cells

Tissues

The Integumentary System

The Skeletal System

Joints

The Muscular System

Nervous Tissue

Central Nervous System, Spinal Nerves, and Cranial Nerves

Autonomic Nervous System

Somatic Senses and Special Sense

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Respiratory System

The Digestive System

Nutrition and Metabolism

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive Systems

Development and Inheritance

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