Human Heart Anatomy Quiz

The human heart has four chambers: two atria and two ventricles.

The left ventricle pumps oxygen-rich blood to the body.

The primary function of the heart is to pump blood throughout the body.

The right atrium receives deoxygenated blood from the body.

Blood flows from the body to the heart, then to the lungs, back to the heart, and then to the body again.

The pulmonary vein carries oxygenated blood back to the heart from the lungs.

The right ventricle pumps deoxygenated blood to the lungs for oxygenation.

The mitral valve prevents backflow of blood from the left ventricle to the left atrium.

The myocardium is the layer of heart muscle responsible for contraction.

The aortic valve regulates blood flow from the left ventricle to the aorta.

The SA node sets the pace of the heartbeat by initiating electrical impulses.

The SA node, or sinoatrial node, is the heart's natural pacemaker.

The coronary arteries branch off from the aorta.

The cardiac cycle refers to the sequence of events that occur in a single heartbeat.

Coronary arteries supply blood to the heart muscle.

The myocardium is composed of cardiac muscle tissue.

Endocarditis primarily affects the inner lining of the heart chambers and valves.

Coronary artery disease is characterized by the narrowing of the coronary arteries.