Heart's Conducting System Flashcard

Front

What triggers contraction in the atria?

Back

SA node

Front

Where is the right bundle located in the heart's conducting system?

Back

The right bundle branch is located in the interventricular septum, conducting impulses to the right ventricle.

Front

What does the T-wave represent in an ECG?

Back

Ventricular diastole.

Front

Where is the atrioventricular (AV) node located?

Back

The AV node is located at the junction of the atria and ventricles, specifically in the interatrial septum.

Front

What is the process of thickening and hardening of arteries called?

Back

Atherosclerosis.

Front

What is the function of the SA node?

Back

The SA node acts as the natural pacemaker of the heart, initiating electrical impulses that trigger heartbeats.

Front

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

Back

The AV node delays the electrical impulse from the atria before it passes to the ventricles, allowing time for the atria to contract and fill the ventricles with blood.

Front

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

Back

The QRS complex represents ventricular depolarization, which leads to ventricular contraction.

Front

What does the P-wave represent in an ECG?

Back

The P-wave represents atrial depolarization, which triggers atrial contraction.

Front

What is the function of the Purkinje fibers?

Back

Purkinje fibers distribute the electrical impulse throughout the ventricles, ensuring coordinated contraction.