Assertion: urinary bladder | /r/CapableOf | act as reservoir
Facets:
value: for the urine
type: PURPOSE
Source sentences:
text: The urinary bladder (Fig. 1135) is a musculomembranous sac which acts as a reservoir for the urine; and as its size, position, and relations vary according to the amount of fluid it contains, it is necessary to study it as it appears (a) when empty, and (b) when distended.)