Cardiac Conduction Pathways Overview Quiz

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What is the role of the SA node in the heart?

It connects the AV node to the ventricles

It causes ventricular contraction by generating an electrical impulse

It causes atrial contraction by generating an electrical impulse (correct)

It delays the electrical impulse from reaching the ventricles

How is atrial depolarization initiated?

By the bundle of His

By the SA node (correct)

By the Purkinje fibers

By the AV node

What is the purpose of the AV nodal delay?

To speed up the conduction of electrical impulse to the ventricles

To prevent the spread of electrical impulse to the ventricles

To ensure efficient blood flow by allowing the atria to complete their contraction before the ventricles contract (correct)

To generate an electrical impulse for ventricular depolarization

What is the function of the bundle of His?

To connect the AV node to the ventricles Signup and view all the answers

What are Purkinje fibers responsible for?

Rapidly conducting the electrical impulse throughout the ventricles Signup and view all the answers

What is the total time taken for an electrical impulse to travel from the SA node to the ventricles called?

Conduction time Signup and view all the answers

What is the role of the SA node in the heart?

Generates the initial electrical impulse that triggers the heartbeat Signup and view all the answers

Which part of the heart receives the impulse from the SA node and delays it before sending it to the ventricles?

AV Node Signup and view all the answers

Which part of the heart helps in the synchronous contraction of the atria?

Internodal Atrial Pathways Signup and view all the answers

Where are the internodal atrial pathways found?

In the connective tissue between the atrial nodes Signup and view all the answers

Which part of the heart is responsible for coordinated contraction and relaxation of the cardiac muscles?

Electrical Activity Spread in Heart Signup and view all the answers

Which part of the heart generates the initial electrical impulse that triggers the heartbeat?

SA Node Signup and view all the answers

Cardiac Conduction Pathways Overview Quiz

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Questions and Answers

What is the role of the SA node in the heart?

How is atrial depolarization initiated?

What is the purpose of the AV nodal delay?

What is the function of the bundle of His?

What are Purkinje fibers responsible for?

What is the total time taken for an electrical impulse to travel from the SA node to the ventricles called?

What is the role of the SA node in the heart?

Which part of the heart receives the impulse from the SA node and delays it before sending it to the ventricles?

Which part of the heart helps in the synchronous contraction of the atria?

Where are the internodal atrial pathways found?

Which part of the heart is responsible for coordinated contraction and relaxation of the cardiac muscles?

Which part of the heart generates the initial electrical impulse that triggers the heartbeat?

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