Assertion: pleural cavity's fluid | /r/CapableOf | reduce friction
Facets:
value: from muscle movement
type: CAUSE
value: between the membranes
type: LOCATION
Source sentences:
text: The fluid keeps the pleura moist and reduces friction between the membranes when you breathe.
text: Serous membranes line and enclose several body cavities, known as serous cavities, where they secrete a lubricating fluid which reduces friction from muscle movement.