epicardium
Definition
Noun: - The innermost layer of the pericardium, which is the double-walled sac that surrounds the heart. The epicardium is a serous membrane that is in direct contact with the heart muscle (myocardium) and also forms the inner layer of the pericardial sac.
Usage
The term "epicardium" is used specifically in anatomical and medical contexts to describe this precise layer of tissue. - The surgeon carefully examined the epicardium for any signs of inflammation. - The epicardium is also known as the visceral layer of the serous pericardium.
Advanced Usage
- As a histological term: In detailed study, the epicardium contains adipose tissue and coronary blood vessels.
- The pathologist noted fat deposits within the epicardium.
Variants and Related Words
- Epicardial (adjective): Pertaining to the epicardium.
- An epicardial pacemaker lead was placed during the surgery.
- Pericardium (noun): The broader double-walled sac containing the heart, of which the epicardium is the inner layer.
- Myocardium (noun): The muscular tissue of the heart, lying directly beneath the epicardium.
- Endocardium (noun): The innermost layer of the heart, lining its chambers.
Synonyms
- Visceral pericardium: This is a direct synonym, emphasizing that it is the layer of the pericardium that is in contact with the heart organ (viscera).
Noun
-
the innermost of the two layers of the pericardium
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