pericardium


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pericardium

 [per″ĭ-kahr´de-um]
the fibroserous sac enclosing the heart and the roots of the great vessels, composed of external (fibrous) and internal (serous) layers.
adherent pericardium one abnormally connected with the heart by dense fibrous tissue.
fibrous pericardium the external layer of the pericardium, consisting of dense fibrous tissue.
parietal pericardium the parietal layer of the serous pericardium, which is in contact with the fibrous pericardium.
serous pericardium the inner, serous portion of pericardium, consisting of two layers, visceral and parietal; the space between the layers is the pericardial cavity.
visceral pericardium the inner layer of the serous pericardium, which is in contact with the heart and roots of the great vessels. Called also epicardium.

per·i·car·di·um

, pl.

per·i·car·di·a

(per'i-kar'dē-ŭm, -ă), [TA]
The fibroserous membrane, consisting of mesothelium and submesothelial connective tissue, covering the heart and beginning of the great vessels. It is a closed sac having two layers: the visceral layer (epicardium), immediately surrounding and applied to all the heart's surfaces, and the outer parietal layer, forming the sac, composed of strong fibrous tissue (fibrous pericardium [TA]) lined with a serous membrane (serous pericardium [TA]). The phrenic nerves pass to the diaphragm through the anterior pericardium and divide the pericardium into antephrenic and retrophrenic portions; the pulmonary hilum divides both of these portions into suprahilar, hilar, and infrahilar portions.
[L. fr. G. pericardion, the membrane around the heart]

pericardium

/peri·car·di·um/ (-kahr´de-um) the fibroserous sac enclosing the heart and the roots of the great vessels.pericar´dial
adherent pericardium  one abnormally connected with the heart by dense fibrous tissue.

pericardium

(pĕr′ĭ-kär′dē-əm)
n. pl. pericar·dia (-dē-ə)
The membranous sac filled with serous fluid that encloses the heart and the roots of the aorta and other large blood vessels.

per′i·car′di·al (-dē-əl), per′i·car′di·ac′ (-dē-ăk′) adj.

pericardium

[per′ikär′dē·əm] pl. pericardia
Etymology: Gk, peri + kardia, heart
a fibroserous sac that surrounds the heart and the roots of the great vessels. It consists of the serous pericardium and the fibrous pericardium. The serous pericardium consists of the parietal layer, which lines the inside of the fibrous pericardium, and the visceral layer, which adheres to the surface of the heart. Between the two layers is the pericardial space, which contains a few drops of pericardial fluid to lubricate opposing surfaces of the space and allow the heart to move easily during contraction. Injury or disease may cause fluid to accumulate in the space, causing a wide separation between the heart and the outer pericardium. The fibrous pericardium, which constitutes the outermost sac and is composed of tough, white fibrous tissue lined by the parietal layer of the serous pericardium, fits loosely around the heart and attaches to large blood vessels emerging from the top of the heart but not to the heart itself. It is relatively inelastic and protects the heart and the serous membranes. If pericardial fluid or pus accumulates in the pericardial space, the fibrous pericardium cannot stretch, causing a rapid increase of pressure around the heart. pericardial, adj.
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Pericardium

per·i·car·di·um

, pl. pericardia (per'i-kahr'dē-ŭm, -ă) [TA]
The fibroserous membrane, consisting of mesothelium and submesothelial connective tissue, covering the heart and beginnings of the great vessels. It is a closed sac having two layers: the visceral layer (epicardium), immediately surrounding the heart, and the outer parietal layer, forming the sac, composed of strong fibrous tissue, the fibrous pericardium, lined with a serous membrane, the serous pericardium.
Synonym(s): heart sac, theca cordis.
[L. fr. G. perikardion, the membrane around the heart]

pericardium

The double-layered membranous sac that completely envelops the heart. The inner layer is attached to the heart and the outer layer to the DIAPHRAGM and the back of the breastbone (sternum). The two layers are separated by a thin film of lubricating fluid.

pericardium

a sac-like envelope surrounding the vertebrate heart and the pericardial cavity in arthropods and molluscs.

Pericardium

The pericardium is the thin, sac-like membrane that surrounds the heart. It has two layers: the serous pericardium and the fibrous pericardium.

pericardium

fibroserous, double-layered membrane surrounding the heart

per·i·car·di·um

, pl. pericardia (per'i-kahr'dē-ŭm, -ă) [TA]
The fibroserous membrane, consisting of mesothelium and submesothelial connective tissue, covering the heart and beginning of the great vessels.
[L. fr. G. pericardion, the membrane around the heart]

pericardium (per´ikärdēəm),

n a fibroserous sac that surrounds the heart and the roots of the great vessels.

pericardium

the fibroserous sac enclosing the heart and the roots of the great vessels, composed of external (fibrous) and internal (serous) layers. See also pericardial.

adherent pericardium
one abnormally connected with the heart by dense fibrous tissue.
congenitally absent pericardium
the heart lies free in the pleural sac; recorded in dogs.
fibrous pericardium
the external layer of the pericardium, consisting of dense fibrous tissue.
parietal pericardium
the parietal layer of the serous pericardium, which is in contact with the fibrous pericardium.
serous pericardium
the inner, serous portion of pericardium, consisting of two layers, visceral and parietal; the space between the layers is the pericardial cavity.
visceral pericardium
the inner layer of the serous pericardium, which is intimately attached to the heart and roots of the great vessels. Called also epicardium.
References in periodicals archive ?
Aortic arch reconstruction in neonates with biventricular morphology: Increased risk for development of recoarctation by use of autologous pericardium.
Repairing anastomotic leakage after esophageal atresia surgery using pericardium has been rarely reported.
Active extravasation of contrast, myocardial disruption, and visualized communication between the ventricle and pericardium may signal this rare imaging diagnosis.
At CMR, thickening of the pericardium to greater than 4 mm can be seen, with the pericardium often best demonstrated on non-fat-suppressed SE or turbo SE sequences, where it is low in signal intensity and outlined by epicardial and pericardial fat.
The native as well as acellular pericardium was crosslinked with 0.
6) The most effective antemortem diagnostic tool for diagnosis of pericardial effusion is visualization of an anechoic area between the heart and the pericardium on echocardiogram.
8 cm of his wind pipe and later reconstructed it naturally with the help of muscle flaps and pericardium.
Hydro pericardium Syndrome (HPS) is a highly infectious disease caused by fowl adenovirus serotype (FAV-4) affecting poultry, especially broiler birds [4].
According to University of Illinois' materials researcher John Rorgers, co-leader of the team who has developed this device, it's like an artificial pericardium, the natural membrane that covers the heart: But this artificial pericardium is instrumented with high quality, man-made devices that can sense and interact with the heart in different ways that are relevant to clinical cardiology.
It was not the heart itself but the membrane around the heart, the pericardium," explained Karanka.