. . . . "the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body; \"he stood still, his heart thumping wildly\""@en-us . . "pump"@en-us . . . . . "05388805-n"^^ . . "ticker"@en-us . . . . . . . "105388805"^^ . . . . . . . . . . . . . . . . . . "0.0"^^ . . "105081173"@en-us . . . . . . . . . . . . . . . . . . . "0.0913722"^^ . . "0.0430262"^^ . . . . . "0.0"^^ . . "0.319911"^^ . . . . . . . . . . "heart"@en-us . . . . . . . "0"^^ . . "104188555"@en-us . . . . "0.136176"^^ . . . . . . . . . "heart"^^ . . . . . . . . . . . "the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body; \"he stood still, his heart thumping wildly\""@en-us . . . . . . "0"^^ . . "0.0558659"^^ . . . . . . . . . . . . . . . . . . "0.353648"^^ . . . . .