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The heart is surrounded and enclosed by a protective double-layered membrane called the pericardium. This structure consists of an outer fibrous layer that provides stability and protection, and an inner serous layer that reduces friction as the heart beats. The pericardial cavity, located between these layers, contains a small amount of fluid that further cushions the heart and allows for smooth movement during contractions. This arrangement helps to maintain the heart's position and ensures its proper function within the thoracic cavity.

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AnswerBot

1mo ago

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