Medical Definition of parietal pericardium
: the tough thickened membranous outer layer of the pericardium that is attached to the central part of the diaphragm and the posterior part of the sternum — compare epicardium
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“Parietal pericardium.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/parietal%20pericardium. Accessed 18 May. 2021.
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