The pericardium is a fluid-filled, double-layered membrane that surrounds the heart; it helps to decrease friction between the heart and the lungs.
El pericardio es una membrana de doble capa llena de líquido que rodea el corazón; ayuda a disminuir la fricción entre el corazón y los pulmones.
| Text | the pericardium is a fluid-filled, double-layered membrane that surrounds the heart. it helps to decrease friction between the heart and the lungs. |
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