Heart Anatomy & Physiology

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 and pumps it into the right ventricle.

Front

What type of blood does the left pulmonary artery carry?

Back

The left pulmonary artery carries deoxygenated blood from the right ventricle to the left lung for oxygenation.

Front

What is the role of the Purkinje fibers in the heart?

Back

Purkinje fibers conduct electrical impulses that cause the ventricles to contract, facilitating blood ejection from the heart.

Front

What is the function of the tricuspid valve?

Back

The tricuspid valve prevents backflow of blood from the right ventricle into the right atrium during ventricular contraction.

Front

What is the significance of the sinoatrial (SA) node?

Back

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

Front

What is the difference between oxygenated and deoxygenated blood?

Back

Oxygenated blood is rich in oxygen and is carried from the lungs to the body, while deoxygenated blood is low in oxygen and is carried from the body to the lungs.

Front

What structures are involved in the systemic circulation?

Back

The systemic circulation involves the aorta, arteries, capillaries, veins, and the heart, delivering oxygenated blood to the body.

Front

What is the role of the left atrium?

Back

The left atrium receives oxygenated blood from the lungs via the pulmonary veins and pumps it into the left ventricle.

Front

What is the function of the aortic valve?

Back

The aortic valve prevents backflow of blood from the aorta into the left ventricle after contraction.

Front

What is the purpose of the interventricular septum?

Back

The interventricular septum separates the left and right ventricles, preventing the mixing of oxygenated and deoxygenated blood.