What Is the Function of the Pericardial Sac?

Answer

The pericardial sac or pericardium is a double-layered membrane covering the heart as well as the start of the great vessels.. Its functions are to protect the heart from diseases from other organs, lubricates the heart, controls its dilation and motions and fixes it in medistenum.
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It cushions the heart and regulates temperature. It also protects the heart from damage.
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