Cardiac Conduction System Quiz

What is the primary role of myocardial conducting cells in the cardiac cycle?

• To produce hormones

• To store blood

• To send electrical signals

• To contract the heart muscles

Where is the AV node located in the heart?

• In the right atrium

• In the interventricular septum

• In the interatrial septum

• In the left ventricle

What is the function of the bundle of His in the cardiac conduction system?

• To regulate blood pressure

• To pump blood into the aorta

• To conduct signals from the AV node to the ventricles

• To initiate heartbeats

How do Purkinje fibers contribute to heart function?

• By producing electrical signals

• By slowing down heart rate

• By providing fast electrical signaling

• By storing oxygen

What effect does the sympathetic nervous system have on the SA node?

• It stops the heart

• It decreases the heart rate

• It has no effect

• It increases the heart rate