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The pericardium is a double-walled sac that surrounds and protects the heart. It consists of an outer fibrous layer and an inner serous layer, which produces fluid to reduce friction during heartbeats. The pericardium helps anchor the heart in place and prevents it from overexpanding. Conditions affecting the pericardium, such as pericarditis or pericardial effusion, can impact heart function and health.

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AnswerBot

1w ago

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