EKG Basics

Front

What does the P wave on the ECG tracing represent?

Back

Depolarization of the atria.

Front

Which wave is recognized as the first positive wave in a normal cardiac cycle?

Back

P wave.

Front

Which wave represents ventricular repolarization in an ECG?

Back

T wave.

Front

What area of the conduction system is responsible for a normal heartbeat of 72 beats per minute?

Back

Sinoatrial node.

Front

Where is the location of the sinus node in the heart?

Back

Right atrium.

Front

What does the QRS complex represent in an ECG?

Back

Ventricular depolarization.

Front

What is the normal range for heart rate in beats per minute?

Back

60 to 100 beats per minute.

Tags

NGSS.HS-LS1-3

Front

What is the function of the Bundle of His in the heart?

Back

To conduct electrical impulses from the atrioventricular node to the ventricles.

Front

What does the T wave indicate in an ECG?

Back

Ventricular repolarization.

Front

What is the role of the atrioventricular node?

Back

To delay the electrical impulse before it passes to the ventricles.