Circulatory System Quiz

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What is the function of the coronary artery?

To facilitate gas exchange in the pulmonary circulation

To nourish the heart with oxygen-rich blood (correct)

To deliver blood to organs

To provide the heart with an automatic rhythmic beat

Where is the primary pacemaker of the heart located?

Junction of SVC and RA (correct)

Interatrial septum

Interventricular septum

Walls of the ventricles

What is the role of the AV node in the heart's conduction system?

To stimulate the heart to contract and pump blood

To divide into R and L main bundle branches

To delay the electrical impulse to allow ventricular filling (correct)

To provide the heart with an automatic rhythmic beat

What happens at the interventricular septum?

It divides into R and L main bundle branches Signup and view all the answers

What triggers myocardial contraction in the heart?

Changes in voltage across the cell membrane Signup and view all the answers

What is the function of the SA node in the heart's conduction system?

Serve as the primary pacemaker of the heart Signup and view all the answers

What is the role of the AV node in the heart's conduction system?

Delay the electrical impulse to allow ventricular filling Signup and view all the answers

What occurs in the pulmonary circulation?

Gas exchange Signup and view all the answers

What is the function of the coronary artery?

Nourish the heart with oxygen-rich blood Signup and view all the answers

Where are the Purkinje fibers located in the heart?

Walls of the ventricles Signup and view all the answers

Circulatory System Quiz

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Questions and Answers

What is the function of the coronary artery?

Where is the primary pacemaker of the heart located?

What is the role of the AV node in the heart's conduction system?

What happens at the interventricular septum?

What triggers myocardial contraction in the heart?

What is the function of the SA node in the heart's conduction system?

What is the role of the AV node in the heart's conduction system?

What occurs in the pulmonary circulation?

What is the function of the coronary artery?

Where are the Purkinje fibers located in the heart?

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