Heart Anatomy and Physiology

Front

What is the SA node?

Back

The SA node, or sinoatrial node, is a group of cells located in the right atrium of the heart that acts as the natural pacemaker, initiating the electrical impulses that regulate heartbeats.

Front

What is the function of the coronary arteries?

Back

Coronary arteries supply oxygenated blood to the heart muscle, ensuring it receives the necessary nutrients and oxygen to function effectively.

Front

What is the bicuspid valve?

Back

The bicuspid valve, also known as the mitral valve, is located between the left atrium and left ventricle, allowing blood to flow from the atrium to the ventricle while preventing backflow.

Front

What chamber of the heart receives deoxygenated blood from the body?

Back

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

Front

What is the pulmonary artery?

Back

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

Front

What is the function of the AV node?

Back

The AV node, or atrioventricular node, is responsible for transmitting electrical impulses from the atria to the ventricles, ensuring coordinated heart contractions.

Front

What is the role of the aorta?

Back

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

Front

What is the purpose of heart valves?

Back

Heart valves ensure unidirectional blood flow through the heart chambers, preventing backflow and maintaining efficient circulation.

Front

What is the difference between the right and left ventricles?

Back

The right ventricle pumps deoxygenated blood to the lungs, while the left ventricle pumps oxygenated blood to the rest of the body.

Front

What are Purkinje fibers?

Back

Purkinje fibers are specialized conductive fibers in the heart that distribute electrical impulses to the ventricular muscle, facilitating coordinated contraction.