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between parietal and visceral pericardium; contains serous fluid which reduces frictions as heart moves.
inflammation of pericardium; caused by viral or bacterial infection; adhesions attach layers'; very painful.
superior vena cava
returns blood from head, neck, shoulders, arms; carries deoxygenated blood back to heart.
carries oxygenated blood from heart; originates from left ventricle; branches to carry blood to all parts of body; carries oxygenated blood.
on surface of heart; separates right atrium from right ventricle; coronary artery and vein lie in:
there are two of them the right atrium and left atrium; receiving chambers; auricles- mushroom cap that can expand to provide extra spaces; on surface; right auricle and left auricle.
Superior and inferior vena cava empty into right atrium; pulmonary veins empty into left atrium.
there are two right ventricle and left ventricle; pumping chambers; largest part of heart.
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