Cardiac Cycle/EKG Quiz

What part of the hearts conduction system is shown in the diagram?

• SA node

• AV Node

• AV bundle

• Purkinje Fibers

What part of the hearts electrical conduction system "receives" the impulse from the nervous system telling it to contract?

• SA Node

• AV Node

• AV Bundle

• Purkinje Fibers

What is the name of the circled area of the ECG in the diagram?

• P Wave

• QRS Complex

• T Wave

• Cardiac Cycle

What is the name of the circled area of the ECG in the diagram?

• P Wave

• QRS Complex

• T Wave

• Cardiac Cycle

What is the name of the circled area of the ECG in the diagram?

• P Wave

• QRS Complex

• T Wave

• Cardiac Cycle

What part of an ECG represents the depolarization of the atria?

• P Wave

• QRS Complex

• T Wave

What part of an ECG represents the depolarization of the ventricles?

• P Wave

• QRS Complex

• T Wave

What part of an ECG represents the repolarization of the heart?

• P Wave

• QRS Complex

• T Wave

The sounds made by the heart are due the contractions of the atria and ventricles.

• True

• False

The 'lub' sound produced after

• semilunar valves close

• atria are fully contracted

• ventricles start to relax

• bicuspid and mitral (tricuspid) valves close