Intro & Anatomy of the Heart

Front

What is the function of the right atrium?

Back

The right atrium receives deoxygenated blood from the body through the superior and inferior vena cavae.

Front

What is the role of the right ventricle?

Back

The right ventricle pumps deoxygenated blood to the lungs through the pulmonary artery.

Front

What prevents backflow of blood into the right atrium during ventricular contraction?

Back

The tricuspid valve prevents backflow into the right atrium.

Front

What is the function of the left atrium?

Back

The left atrium receives oxygenated blood from the lungs through the pulmonary veins.

Front

What is the role of the left ventricle?

Back

The left ventricle pumps oxygenated blood to the rest of the body through the aorta.

Front

What are semilunar valves?

Back

Semilunar valves are located at the exits of the ventricles and prevent backflow of blood into the ventricles.

Front

What is the sinoatrial node (SA node)?

Back

The SA node is the heart's natural pacemaker, initiating the electrical impulses that trigger heartbeats.

Front

What is the function of the atrioventricular node (AV node)?

Back

The AV node receives impulses from the SA node and relays them to the ventricles, coordinating their contraction.

Front

What is the purpose of the aorta?

Back

The aorta is the largest artery in the body, carrying oxygenated blood from the left ventricle to the body.

Front

What is the difference between arteries and veins?

Back

Arteries carry oxygenated blood away from the heart, while veins carry deoxygenated blood back to the heart.