Pericardium - Dictionary Definition and Overview

Pericardium :  (noun)

1: a double-layered serous membrane that surrounds the heart

Based on WordNet 2.0

Pericardium : \Per`i*car"di*um\, n. [NL., fr. Gr. ?, fr. ? about or near the heart; ? about _ ? heart.] (Anat.) The double baglike fold of serous membrane which incloses the heart.

Note: The inner layer is closely adherent to the outer surface of the heart, and is called the cardiac pericardium. The outer layer loosely incloses the heart and the adherent inner layer, and is called the parietal pericardium. At the base of the heart the two layers are continuous, and form a narrow closed cavity filled with fluid, in which the pulsations of the heart cause little friction.

Based on Webster's Revised Unabridged Dictionary

Pericardium :  Pericardium: The conical sac of fibrous tissue that surrounds the heart and the roots of the great blood vessels. The pericardium's outer coat (the pericardial fluid. This small amount of fluid acts as a lubricant to allow normal heart movement within the chest.

Also known as the Pericarditis .



Based on Webster's Revised Unabridged Dictionary (1913)
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