A graphic, three-dimensional teaching model to demonstrate the topography of the human heart.

A three-dimensional graphic model of the human heart and an accompanying description are presented as a teaching aid. Each of the four chambers is represented by a cube of equal size. Drawings of the model from various angles give views of each of the surfaces and show the interatrial, interventricular, and atrioventricular grooves, and superimposed coronary arteries and cardiac veins.