Question 1

The node that is located just above the tricuspid valve is the:

Accepted Answer

A)  central node. 
B)  Purkinje node. 
C)  SA node. 
D)  AV node. 
A)  central node. 
B)  Purkinje node. 
C)  SA node. 
D)  AV node. D

Question 2

In the normal heart, this is the ONLY pathway between the atria and ventricles.

Accepted Answer

A)  AV node 
B)  Left bundle branch 
C)  Right bundle branch 
D)  SA node 
A)  AV node 
B)  Left bundle branch 
C)  Right bundle branch 
D)  SA node A

Question 3

Nodes and bundles are located primarily beneath the:

Accepted Answer

A)  endocardium. 
B)  myocardium. 
C)  epicardium. 
D)  pericardium. 
A)  endocardium. 
B)  myocardium. 
C)  epicardium. 
D)  pericardium. A

Question 4

The area where the internodal pathways join the bundle of His is:

Accepted Answer

A)  the right bundle branch. 
B)  Purkinje's network. 
C)  the left bundle branch. 
D)  the AV junction. 
A)  the right bundle branch. 
B)  Purkinje's network. 
C)  the left bundle branch. 
D)  the AV junction.

Question 5

Which part of the conduction system has a firing rate of 60 to 100?

Accepted Answer

A)  Purkinje fibers 
B)  AV node 
C)  SA node 
D)  Bundle branches 
A)  Purkinje fibers 
B)  AV node 
C)  SA node 
D)  Bundle branches

Question 6

If the vagus nerve is stimulated, the heart rate will:

Accepted Answer

A)  increase. 
B)  decrease. 
A)  increase. 
B)  decrease.

Question 7

The SA node impulses result in:

Accepted Answer

A)  repolarization. 
B)  depolarization. 
C)  diastole. 
D)  All of the above 
A)  repolarization. 
B)  depolarization. 
C)  diastole. 
D)  All of the above

Question 8

It is generally believed that a bit less than ________ of the cells are actual pacemaker cells.

Accepted Answer

A)  25% 
B)  50% 
C)  75% 
D)  85% 
A)  25% 
B)  50% 
C)  75% 
D)  85%

Question 9

A(n) ________ pathway may be defined as an irregular muscle connection between the atria and the ventricles that bypasses the AV node.

Accepted Answer

A)  accessory 
B)  Thorel's 
C)  universal 
D)  conductive 
A)  accessory 
B)  Thorel's 
C)  universal 
D)  conductive

Question 10

The bundle of His is also traditionally referred to as the ________ bundle.

Accepted Answer

A)  simple 
B)  dedicated 
C)  common 
D)  universal 
A)  simple 
B)  dedicated 
C)  common 
D)  universal

Question 11

The bundle of His lies at the ________ of the interventricular septum.

Accepted Answer

A)  left 
B)  bottom 
C)  top 
D)  right 
A)  left 
B)  bottom 
C)  top 
D)  right

Question 12

The pacemaker that fires at 20 to 40 beats per minute is:

Accepted Answer

A)  Purkinje's network. 
B)  the bundle of His. 
C)  the AV node. 
D)  the SA node. 
A)  Purkinje's network. 
B)  the bundle of His. 
C)  the AV node. 
D)  the SA node.

Question 13

The internodal tracts consist of anterior, middle, and posterior. They are also known as all of the following EXCEPT:

Accepted Answer

A)  Bachmann's bundle. 
B)  Wenckebach's bundle. 
C)  Thorel's pathway. 
D)  Beasley's pathway. 
A)  Bachmann's bundle. 
B)  Wenckebach's bundle. 
C)  Thorel's pathway. 
D)  Beasley's pathway.

Question 14

Bachmann's bundle is located in the:

Accepted Answer

A)  top of right atrium. 
B)  left atrium. 
C)  left ventricle. 
D)  right ventricle. 
A)  top of right atrium. 
B)  left atrium. 
C)  left ventricle. 
D)  right ventricle.

The node that is located just above the tricuspid valve is the:

In the normal heart, this is the ONLY pathway between the atria and ventricles.

Nodes and bundles are located primarily beneath the:

The area where the internodal pathways join the bundle of His is:

Which part of the conduction system has a firing rate of 60 to 100?

If the vagus nerve is stimulated, the heart rate will:

The SA node impulses result in:

It is generally believed that a bit less than ________ of the cells are actual pacemaker cells.

A(n) ________ pathway may be defined as an irregular muscle connection between the atria and the ventricles that bypasses the AV node.

The bundle of His is also traditionally referred to as the ________ bundle.

The bundle of His lies at the ________ of the interventricular septum.

The pacemaker that fires at 20 to 40 beats per minute is:

The internodal tracts consist of anterior, middle, and posterior. They are also known as all of the following EXCEPT:

Bachmann's bundle is located in the:

The Anatomy of the Heart: Structure

Cardiovascular Physiology: Function

Basic Electrophysiology

The Electrocardiogram

Interpretation of an Ekg Strips

Introducing the Sinus Rhythms

Introducing the Atrial Rhythms

Introducing the Junctional Rhythms

Introducing the Ventricular Rhythms

Introducing the Heart Block Rhythms

Introducing the Pacemaker Rhythms

Assessment and Treatment of the Patient With Cardiac Emergencies

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Exam 4: The Electrical Conduction System

The node that is located just above the tricuspid valve is the:

In the normal heart, this is the ONLY pathway between the atria and ventricles.

Nodes and bundles are located primarily beneath the:

The area where the internodal pathways join the bundle of His is:

Which part of the conduction system has a firing rate of 60 to 100?

If the vagus nerve is stimulated, the heart rate will:

The SA node impulses result in:

It is generally believed that a bit less than ________ of the cells are actual pacemaker cells.

A(n) ________ pathway may be defined as an irregular muscle connection between the atria and the ventricles that bypasses the AV node.

The bundle of His is also traditionally referred to as the ________ bundle.

The bundle of His lies at the ________ of the interventricular septum.

The pacemaker that fires at 20 to 40 beats per minute is:

The internodal tracts consist of anterior, middle, and posterior. They are also known as all of the following EXCEPT:

Bachmann's bundle is located in the:

The Anatomy of the Heart: Structure

Cardiovascular Physiology: Function

Basic Electrophysiology

The Electrocardiogram

Interpretation of an Ekg Strips

Introducing the Sinus Rhythms

Introducing the Atrial Rhythms

Introducing the Junctional Rhythms

Introducing the Ventricular Rhythms

Introducing the Heart Block Rhythms

Introducing the Pacemaker Rhythms

Assessment and Treatment of the Patient With Cardiac Emergencies

Filters