EKGs

Front

What are Purkinje fibers?

Back

Purkinje fibers are specialized conductive fibers located in the inner ventricular walls of the heart that help coordinate the contraction of the ventricles.

Front

What is the function of the Purkinje fibers?

Back

The Purkinje fibers are responsible for the contraction of the ventricle muscles, ensuring that the heart pumps blood effectively.

Front

What is heart rate?

Back

Heart rate is the number of times the heart ventricles beat in one minute.

Front

What is asystole?

Back

Asystole is a state of no electrical activity in the heart, leading to no contractions and is not synonymous with an irregular heart rhythm.

Front

What is repolarization in the heart?

Back

Repolarization is the relaxation phase of the heart that prepares the heart for another depolarization.

Front

What is the SA node?

Back

The SA node, or sinoatrial node, is the natural pacemaker of the heart that initiates the electrical impulses for heartbeats.

Front

What is the AV node?

Back

The AV node, or atrioventricular node, is a part of the electrical conduction system of the heart that relays impulses from the atria to the ventricles.

Front

What is the Bundle of His?

Back

The Bundle of His is a collection of heart muscle cells that transmit electrical impulses from the AV node to the Purkinje fibers.

Front

What is stroke volume?

Back

Stroke volume is the amount of blood pumped by the left ventricle of the heart in one contraction.

Front

What is cardiac output?

Back

Cardiac output is the volume of blood the heart pumps per minute, calculated as heart rate multiplied by stroke volume.