Heart ECG and conducting system

The p wave corresponds to what event in the heart?

• repolarization of the atria

• depolarization of the atria

• repolarization of the ventricles

• depolarization of the ventricles

The T wave corresponds to what event in the heart?

• repolarization of the atria

• depolarization of the atria

• repolarization of the ventricles

• depolarization of the ventricles

ECG is a reading that shows

• the activity of heart

• the electrical activity of cardiac muscle

• the systole and diastole of cardiac muscle

• the initiation of heartbeat

The correct sequence of the three events in ECG

• P wave , T wave , QRS complex

• QRS complex , P wave , T wave

• T wave , QRS complex , P wave

• P wave, QRS complex, T wave

Which event is NOT correct during P wave

• SA node generate impulse and transmit it to walls of atria

• Atrial depolarization

• Atria contract

• Ventricular depolarization

Which one is represent T wave

• A

• B

• C

• E

Tags

NGSS.HS-PS4-1

By relating events in ECG with phases in cardiac cycle, at which event the AV valve will be closed?

• A

• B

• C

• E

By relating events in ECG with phases in cardiac cycle, at which event both atria and ventricles will be relaxed?

• A

• B

• C

• E

By relating events in ECG with phases in cardiac cycle, at which event the second sound of heart "dup" will be produced?

• A

• B

• C

• E

which is the correct order?

• SA Node, AV Node, Bundle of His, Lt and Rt Bundle Branches, Purkinje Fibers

• AV Node, SA Node, Lt and Rt Bundle Branches, Bundle of His, Purkinje Fibers

• Bundle of His, Lt and Rt Bundle Branches, Bundles of His, Purkinje Fibers, AV Node, SA Node

• Purkinje Fibers, Bundle of His, AV Node, Lt and Rt Bundle Branches