EKG

Front

What does the P wave represent in an EKG?

Back

The P wave represents atrial depolarization.

Front

What is the significance of the QRS complex in an EKG?

Back

The QRS complex represents ventricular depolarization.

Front

Where is the SA node located?

Back

The SA node is located in the right atrium of the heart.

Front

What does the T wave represent in an EKG?

Back

The T wave represents ventricular repolarization.

Front

What is the function of the bundle of His?

Back

The bundle of His conducts electrical impulses from the atrioventricular node to the ventricles.

Front

What is the normal heart rate range for adults?

Back

The normal heart rate range for adults is 60 to 100 beats per minute.

Front

What does the term 'repolarization' refer to in cardiac physiology?

Back

Repolarization refers to the process of restoring the resting state of the cardiac muscle cells after depolarization.

Front

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

Back

The AV node acts as a gatekeeper, slowing down the electrical signal before it passes to the ventricles.

Front

What is the significance of the ST segment in an EKG?

Back

The ST segment represents the period between ventricular depolarization and repolarization.

Front

What can an elevated ST segment indicate?

Back

An elevated ST segment can indicate myocardial infarction (heart attack) or other cardiac issues.