The pericardium helps prevent overfilling of the heart and it lessens the friction of movements during heartbeats.

Name: The pericardium helps prevent overfilling of the heart and it lessens the friction of movements during heartbeats.
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The pericardium is a double-walled sac containing the heart and the roots of the great vessels. It provides a lubricated environment that reduces friction during heartbeats and limits excessive expansion of the heart.

The Pericardium Helps Prevent Overfilling of the Heart and It