Pericardial cavity
pericardial cavity per·i·car·di·al cavity (pěr’ĭ-kär’dē-əl)
n.
The fluid-filled space between the two layers of the pericardium.
Read Also:
- Pericardial decompression  pericardial decompression n. See cardiac decompression. 
- Pericardial fremitus  pericardial fremitus n. The vibration in the chest wall produced by the friction of opposing roughened surfaces of the pericardium. 
- Pericardial friction sound  pericardial friction sound n. An oscillating creaking sound sometimes heard on auscultation, caused by the rubbing together of inflamed pericardial surfaces as the heart contracts and relaxes. Also called pericardial rub. 
- Pericardial murmur  pericardial murmur n. A friction sound, synchronous with the heart movements, heard in certain cases of pericarditis. 
- Pericardial rub  pericardial rub n. See pericardial friction sound. 
