Meaning of PERICARDIUM
| Pronunciation: | | `peru'kârdeeumca
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 WordNet Dictionary |
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| | Definition: | | [n] a double-layered serous membrane that surrounds the heart |
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| | See Also: | | epicardium, parietal pericardium, serosa, serous membrane, visceral pericardium | |
| Webster's 1913 Dictionary |
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| | Definition: | | \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.
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| Medical Dictionary |
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| | Definition: | | the membrane that surrounds the heart. |
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| Biology Dictionary |
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| | Definition: | | The pericardium is a sac that encloses the heart and the roots of the great vessels (aorta, superior and inferior vena cava, and the pulmonary arteries and veins). |
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