Educators can find printable heart diagrams from Science Kids and TeacherVision. The diagram available from TeacherVision is just a blank diagram of the heart. The diagram available from Science Kids is colored and lists the different parts of the organ.
WebMD also has a printable diagram of the heart and explains some of its functions. The heart pumps blood through the entire body through a series of veins and arteries called the cardiovascular system, states WebMD. The organ is located behind the left breastbone and is about the same size as a fist. The heart has four different chambers that send blood to the body and receive it from different areas of the body. The heart also has coronary arteries that provide it with oxygenated blood.