A set of three heart models, each approximately 50% actual size. One model shows normal heart anatomy. A myocardial infarction model demonstrates a partially healed heart and five discolored infarct areas, including a thrombus in the apex of the heart. The third model illustrates a heart with congestive heart failure as a result of hypertension. This model shows left ventricle hypertrophy and the enlarged and distorted shape of the heart is shown both internally and externally. Normal and myocardial infarction models measure 4 x 2.25 x 1.75 inch; congestive heart failure model is 4 x 2.5 x 2.25inch. The 8.75 x 6.25 inch base holds a 6.5 x 5.25inch key card.