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serous pericardium
Yes, it is.
pericardial sac
The pericardial sac.
Fibrous pericardium
Fibrous Pericardium
The pericardium surrounds the heart like a protective sac. It contains fluid that decreases friction.
There are two outermost of the periodical. The two outermost periodical are the fibrous pericardium and serous pericardium.
Pericardial effusion.
No
-- The doctor
The pericardial sac contains the heart and pericardial fluid which serves to protect the heart. The fluid is secreted by the serous visceral pericardium and is similar to the cerebral spinal fluid that cushions the brain.