Fluid: The pericardium is the space between the surface of the heart and the pericardial lining. Inside this space is usually a small amount of fluid, the pericardial fluid. Since the heart is constantly moving with each beat, the sac protects the heart and the fluid functions like oil on a piston to allow smooth, effortless movement.
Answered 9/2/2013
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Fluid: Called pericardial fluid to keep the moving heart lubricated.
Answered 9/8/2013
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Pericardium is : The membrane enclosing the heart.
Answered 6/11/2013
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Pericardium: The pericardium is the tissue covering which encloses the heart. It is separate from the outer layer of the heart which is called the epicardium.
Answered 11/29/2014
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Pericardium: The pericardium is the tissue covering which encloses the heart. It is separate from the outer layer of the heart which is called the epicardium.
Answered 12/1/2014
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