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epicardium

   Also found in: Medical, Encyclopedia, Wikipedia 0.01 sec.
ep·i·car·di·um  (p-kärd-m)
n. pl. ep·i·car·di·a (-d-)
The inner layer of the pericardium that is in actual contact with the surface of the heart.

[New Latin : epi- + Greek kardi, heart; see kerd- in Indo-European roots.]

epi·cardi·al adj.

epicardium [ˌɛpɪˈkɑːdɪəm]
n pl -dia [-dɪə]
(Life Sciences & Allied Applications / Anatomy) Anatomy the innermost layer of the pericardium, in direct contact with the heart
[New Latin, from epi- + Greek kardia heart]
epicardiac , epicardial adj
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.epicardium - the innermost of the two layers of the pericardium
pericardium - a serous membrane with two layers that surrounds the heart
serosa, serous membrane - a thin membrane lining the closed cavities of the body; has two layers with a space between that is filled with serous fluid


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The new tools allow doctors to go through that sac to the epicardium - the heart's outermost tissue - without actually entering the heart, "reducing patients' risk and recovery time," he added.
The J wave is produced by a transmural voltage gradient during initial ventricular repolarization, which results from the presence of a prominent action potential notch mediated by the transient outward potassium current (Ito) in the epicardium (1).
In the embryo, Tß4 stimulates cells in the heart's outer layer, the epicardium, to produce more blood vessels, but it seems to be switched off once the heart is fully developed.
 
 
 
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