pericardial cavitymedical dictionary

The potential space between the parietal and the visceral layers of the serous pericardium, in the embryo, that part of the primary celom containing the heart; originally it is in open communication with the pericardioperitoneal cavity's and indirectly, through them, with the peritoneal part of the celom.

Synonyms: cavitas pericardialis, cavum pericardii.

(05 Mar 2000)