heart (hahrt) cor; the viscus of cardiac muscle that maintains the circulation of the blood.
artificial heart a pumping mechanism that duplicates the rate, output, and blood pressure of the natural heart; it may replace the function of a part or all of the heart.
athletic heart hypertrophy of the heart without valvular disease, sometimes seen in athletes.
extracorporeal heart an artificial heart located outside the body and usually performing pumping and oxygenating functions.
fatty heart
1. one that has undergone fatty degeneration.
2. a condition in which fat has accumulated around and in the heart muscle.
fibroid heart one in which fibrous tissue replaces portions of the myocardium, such as may occur in chronic myocarditis.
horizontal heart a counterclockwise rotation of the electrical axis (deviation to the left) of the heart.
left heart the left atrium and ventricle, which propel the blood through the systemic circulation.
right heart the right atrium and ventricle, which propel the venous blood into the pulmonary circulation.
stone heart massive contraction band necrosis in an irreversibly noncompliant hypertrophied heart, occurring as a complication of cardiac surgery; believed due to low levels of ATP and to calcium overload.
three-chambered heart a developmental anomaly in which the heart is missing the interventricular or interatrial septum and so has only three compartments. 
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Three-chambered heart in which the interventricular septum is absent (common ventricle).
water-bottle heart a radiographic sign of pericardial effusion, in which the cardiopericardial silhouette is enlarged and assumes the shape of a flask or water bottle.
| left heart n. The left atrium and left ventricle. |
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