ECG CH 7 Review

Front

What does "AV junction" refer to in the context of cardiac physiology?

Back

Atrioventricular node

Front

What does the term "retrograde" imply in medical terminology?

Back

Backward movement

Front

What does an isoelectric waveform indicate?

Back

Flat, no current flowing

Front

What characterizes a positive deflection in a waveform?

Back

Upright, current flows to positive electrode

Front

What happens during a negative deflection in a waveform?

Back

Downward, current flows away from positive electrode

Front

What is the primary function of the heart?

Back

To pump blood throughout the body

Front

Which part of the heart is responsible for receiving oxygenated blood from the lungs?

Back

Left atrium

Front

What is the role of the valves in the heart?

Back

To prevent backflow of blood

Front

What is the inherent rate of the AV junction?

Back

40 to 60 beats per minute

Front

What is the function of the AV junction in the heart?

Back

Backup pacemaker