The heart is a muscular pump that drives the blood around the body, creating the circulation. It has four chamber, two atria above, and two ventricles below. It is fed by its own coronary arteries. Monochrome outline drawing..
Illustration ID: Heart_Outline
Illustration size: 144.0 Mpixels (412 MB uncompressed) - 12000x12000 pixels (40.0x40.0 in / 101.6x101.6 cm at 300 ppi)