Front

What is the P Wave in an ECG?

Back

The P Wave represents the depolarization of the atria in the heart, indicating the electrical activity that triggers atrial contraction.

Front

What is the function of arteries in the cardiovascular system?

Back

Arteries carry oxygenated blood away from the heart to the tissues of the body.

Front

What is a hematoma?

Back

A hematoma is a localized collection of blood outside of blood vessels, usually caused by an injury, and can indicate a more serious underlying injury.

Front

What does the QRS Complex represent in an ECG?

Back

The QRS Complex represents the depolarization of the ventricles, which leads to ventricular contraction.

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 ventricles.

Front

What is the role of the SA node in the heart?

Back

The SA node, or sinoatrial node, is the natural pacemaker of the heart, initiating the electrical impulses that set the rhythm for the heartbeat.

Front

What is the T Wave in an ECG?

Back

The T Wave represents the repolarization of the ventricles, indicating the recovery phase after contraction.

Front

What are capillaries?

Back

Capillaries are small blood vessels that connect arteries and veins, allowing for the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.

Front

What is the cardiac cycle?

Back

The cardiac cycle refers to the sequence of events in one heartbeat, including the contraction (systole) and relaxation (diastole) of the heart chambers.

Front

What is the difference between veins and arteries?

Back

Veins carry deoxygenated blood back to the heart, while arteries carry oxygenated blood away from the heart.