Heart

(hart). The muscular body which pumps the blood through the system. The heart is situated behind the breast-bone, rather to the left; the point of the heart being under the left breast. If the ear or a stethoscope be placed over a healthy heart, a dull thudding sound is heard immediately followed by a short, sharper, crisper sound; a short pause follows, and then the two sounds occur again. Each pair of sounds corresponds to one beat of the heart. Cases of heart disease require the most ince ant care and careful nursing.