Question 1

A heart rate of more than 100 beats per minute is referred to as _______.

Accepted Answer

A)  tachycardia 
B)  bradycardia 
C)  ischemia 
D)  myocardial infarction 
A)  tachycardia 
B)  bradycardia 
C)  ischemia 
D)  myocardial infarction

Question 2

From the AV node, the impulse spreads into specialized muscle fibers that form the _______.

Accepted Answer

A)  atrioventricular bundle 
B)  AV node 
C)  Purkinje fibers 
D)  intercalated disks 
A)  atrioventricular bundle 
B)  AV node 
C)  Purkinje fibers 
D)  intercalated disks

Question 3

Fill in the correct labels for the following figure using the word bank below.
  
-E ___________

Accepted Answer

A) Pulmonary semilunar valve 
B) Aorta 
C) Left atrium 
D) Right ventricle 
E) Left ventricle
F)Right atrium 
A) Pulmonary semilunar valve 
B) Aorta 
C) Left atrium 
D) Right ventricle 
E) Left ventricle
F)Right atrium

Question 4

Fill in the correct labels for the following figure using the word bank below.
  
-G ___________

Accepted Answer

A) Apex 
B) Right atrium 
C) Arch of aorta 
D) Inferior vena cava 
E) Superior vena cava
F)Left pulmonary veins
G)Auricle of left atrium
H)Pulmonary arteries
I)Right ventricle 
A) Apex 
B) Right atrium 
C) Arch of aorta 
D) Inferior vena cava 
E) Superior vena cava
F)Left pulmonary veins
G)Auricle of left atrium
H)Pulmonary arteries
I)Right ventricle

Question 5

The first heart sound _______.

Accepted Answer

A)  marks the beginning of ventricular diastole 
B)  is caused by the closure of the AV valves 
C)  is caused by the closure of the semilunar valves 
D)  answers a and b are correct 
A)  marks the beginning of ventricular diastole 
B)  is caused by the closure of the AV valves 
C)  is caused by the closure of the semilunar valves 
D)  answers a and b are correct

Question 6

The pericardium consists of two layers that are separated by a potential space called the _______.

Accepted Answer

A)  pericardium space 
B)  thoracic cavity 
C)  epicardial cavity 
D)  pericardial cavity 
A)  pericardium space 
B)  thoracic cavity 
C)  epicardial cavity 
D)  pericardial cavity

Question 7

Cardiac output is the volume of blood _______.

Accepted Answer

A)  pumped by one ventricle during one beat 
B)  that leaves the heart in 1 minute 
C)  pumped by the right atrium into the pulmonary artery in 1 minute 
D)  pumped by the left ventricle into the aorta in 1 minute 
A)  pumped by one ventricle during one beat 
B)  that leaves the heart in 1 minute 
C)  pumped by the right atrium into the pulmonary artery in 1 minute 
D)  pumped by the left ventricle into the aorta in 1 minute

Question 8

The period of contraction in which blood is forced out of the heart is known as _______.

Accepted Answer

A)  systole 
B)  diastole 
C)  cardiac contraction 
D)  coronary occlusion 
A)  systole 
B)  diastole 
C)  cardiac contraction 
D)  coronary occlusion

Question 9

Fill in the correct labels for the following figure using the word bank below.
  
-H ___________

Accepted Answer

A) Apex 
B) Right atrium 
C) Arch of aorta 
D) Inferior vena cava 
E) Superior vena cava
F)Left pulmonary veins
G)Auricle of left atrium
H)Pulmonary arteries
I)Right ventricle 
A) Apex 
B) Right atrium 
C) Arch of aorta 
D) Inferior vena cava 
E) Superior vena cava
F)Left pulmonary veins
G)Auricle of left atrium
H)Pulmonary arteries
I)Right ventricle

Question 10

The period of relaxation in which the heart fills with blood is known as _______.

Accepted Answer

A)  systole 
B)  diastole 
C)  cardiac contraction 
D)  coronary occlusion 
A)  systole 
B)  diastole 
C)  cardiac contraction 
D)  coronary occlusion

Question 11

Fill in the correct labels for the following figure using the word bank below.
  
-D ___________

Accepted Answer

A) Pulmonary semilunar valve 
B) Aorta 
C) Left atrium 
D) Right ventricle 
E) Left ventricle
F)Right atrium 
A) Pulmonary semilunar valve 
B) Aorta 
C) Left atrium 
D) Right ventricle 
E) Left ventricle
F)Right atrium

Question 12

Cardiac centers _______.

Accepted Answer

A)  control autonomic nerves that signal the SA node 
B)  are located in the midbrain 
C)  are regulated by acetylcholine 
D)  answers A and B are correct 
A)  control autonomic nerves that signal the SA node 
B)  are located in the midbrain 
C)  are regulated by acetylcholine 
D)  answers A and B are correct

Question 13

The pathway taken by an electrical impulse through the heart is _______.

Accepted Answer

A)  AV node $\rightarrow$ SA node $\rightarrow$ cardiac muscle of atria  $\rightarrow$AV bundle $\rightarrow$ right or left bundle branch $\rightarrow$ muscle of ventricles 
B)  SA node$\rightarrow$ cardiac muscle of atria $\rightarrow$ AV node $\rightarrow$ AV bundle right or left bundle branch $\rightarrow$ muscle of ventricles 
C)  AV bundle $\rightarrow$ AV node $\rightarrow$ muscles of ventricles $\rightarrow$ muscle of atria $\rightarrow$ SA node 
D)  muscle of atria $\rightarrow$ AV node $\rightarrow$ muscles of ventricles $\rightarrow$ muscle of atria $\rightarrow$ SA node 
A)  AV node $\rightarrow$ SA node $\rightarrow$ cardiac muscle of atria  $\rightarrow$AV bundle $\rightarrow$ right or left bundle branch $\rightarrow$ muscle of ventricles 
B)  SA node$\rightarrow$ cardiac muscle of atria $\rightarrow$ AV node $\rightarrow$ AV bundle right or left bundle branch $\rightarrow$ muscle of ventricles 
C)  AV bundle $\rightarrow$ AV node $\rightarrow$ muscles of ventricles $\rightarrow$ muscle of atria $\rightarrow$ SA node 
D)  muscle of atria $\rightarrow$ AV node $\rightarrow$ muscles of ventricles $\rightarrow$ muscle of atria $\rightarrow$ SA node

Question 14

Intercalated disks _______.

Accepted Answer

A)  are specialized muscle fibers that conduct the impulse directly to the AV node 
B)  are tight junctions between cardiac muscle fibers that allow an impulse to pass rapidly from one fiber to the next 
C)  are the terminal fibers in the heart's conduction system 
D)  initiate the cardiac cycle 
A)  are specialized muscle fibers that conduct the impulse directly to the AV node 
B)  are tight junctions between cardiac muscle fibers that allow an impulse to pass rapidly from one fiber to the next 
C)  are the terminal fibers in the heart's conduction system 
D)  initiate the cardiac cycle

Question 15

Two _______ arteries branch off the aorta as it leaves the heart.

Accepted Answer

A)  coronary 
B)  cardiac 
C)  carotid 
D)  aortic 
A)  coronary 
B)  cardiac 
C)  carotid 
D)  aortic

Question 16

Cardiac muscle fibers are joined at their ends by dense bands called _______.

Accepted Answer

A)  Purkinje fibers 
B)  intercalated disks 
C)  AV fibers 
D)  cardiac disks 
A)  Purkinje fibers 
B)  intercalated disks 
C)  AV fibers 
D)  cardiac disks

Question 17

The condition in which the heart rate is less than 60 beats per minute is called _______.

Accepted Answer

A)  normal heart rate 
B)  tachycardia 
C)  coronary artery disease 
D)  bradycardia 
A)  normal heart rate 
B)  tachycardia 
C)  coronary artery disease 
D)  bradycardia

Question 18

The cardiac muscle becomes ________, or lacking in blood supply, when a coronary artery is blocked.

Accepted Answer

A)  systolic 
B)  diastolic 
C)  anemic 
D)  ischemic 
A)  systolic 
B)  diastolic 
C)  anemic 
D)  ischemic

Question 19

_______ increases heart rate.

Accepted Answer

A)  Relaxation 
B)  Norepinephrine 
C)  Acetylcholine 
D)  Subnormal temperatures 
A)  Relaxation 
B)  Norepinephrine 
C)  Acetylcholine 
D)  Subnormal temperatures

Question 20

The _______ valve guards the passageway between each atrium and ventricle.

Accepted Answer

A)  tricuspid 
B)  atrioventricular 
C)  bicuspid 
D)  semilunar 
A)  tricuspid 
B)  atrioventricular 
C)  bicuspid 
D)  semilunar

Exam 11: The Circulatory System: The Heart

A heart rate of more than 100 beats per minute is referred to as _______.

From the AV node, the impulse spreads into specialized muscle fibers that form the _______.

Fill in the correct labels for the following figure using the word bank below. -E ___________

Fill in the correct labels for the following figure using the word bank below. -G ___________

The first heart sound _______.

The pericardium consists of two layers that are separated by a potential space called the _______.

Cardiac output is the volume of blood _______.

The period of contraction in which blood is forced out of the heart is known as _______.

Fill in the correct labels for the following figure using the word bank below. -H ___________

The period of relaxation in which the heart fills with blood is known as _______.

Fill in the correct labels for the following figure using the word bank below. -D ___________

Cardiac centers _______.

The pathway taken by an electrical impulse through the heart is _______.

Intercalated disks _______.

Two _______ arteries branch off the aorta as it leaves the heart.

Cardiac muscle fibers are joined at their ends by dense bands called _______.

The condition in which the heart rate is less than 60 beats per minute is called _______.

The cardiac muscle becomes ________, or lacking in blood supply, when a coronary artery is blocked.

_______ increases heart rate.

The _______ valve guards the passageway between each atrium and ventricle.

Introducing the Human Body

Cells and Tissues

The Integumentary System

The Skeletal System

The Muscular System

The Central Nervous System

The Peripheral Nervous System

Sensory Receptors

Endocrine Control

The Circulatory System: Blood

The Circulation of Blood and Lymph

Immune System: Internal Defense

The Respiratory System

The Digestive System

The Urinary System and Fluid Balance

Reproduction

Anatomy and Physiology: A Comprehensive Guide to the Human Body

Anatomy and Physiology

Anatomy and Physiology: Bones, Muscles, and Joints

Anatomy and Physiology of the Nervous System

Anatomy and Physiology of the Cardiovascular and Immune Systems

Anatomy and Physiology of the Cardiovascular and Respiratory Systems

Anatomy and Physiology: Respiratory and Digestive Systems, Urinary System, and Reproductive System

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