Anatomy Heart

Front

Tricuspid Valve

Back

Separates the right atrium from the right ventricle; prevents backflow of blood into the right atrium.

Front

Epicardium

Back

The outer layer of the heart; reduces friction between the heart and surrounding structures.

Front

Left Atrium

Back

Superior cavity that receives oxygen-rich blood from the lungs through the pulmonary vein.

Front

Interventricular Septum

Back

Separates the right and left ventricles; prevents mixing of oxygenated and deoxygenated blood.

Front

Interatrial Septum

Back

Separates the right and left atria; prevents mixing of blood between the two atria.

Front

Pulmonary Valve

Back

Valve that controls blood flow from the right ventricle to the pulmonary artery.

Front

Aortic Valve

Back

Valve that controls blood flow from the left ventricle into the aorta.

Front

Myocardium

Back

The muscular middle layer of the heart responsible for contraction and pumping blood.

Front

Endocardium

Back

The inner layer of the heart that lines the chambers and valves.

Front

Coronary Arteries

Back

Blood vessels that supply blood to the heart muscle itself.