Assertion: pericardium's layer | /r/LocatedNear | fluid filled space
Facets:
Source sentences:
text: The serous membranes have two layers—parietal and visceral—surrounding a fluid filled space.
text: The serous membranes have two layers—parietal and visceral—surrounding a fluid filled space.
text: The serous membranes have two layers—parietal and visceral—surrounding a fluid filled space.