Assertion: epithelium's microvilli | /r/CapableOf | increase surface area
Facets:
value: for absorption
type: PURPOSE
Source sentences:
text: To absorb efficiently, columnar cells of the small intestine have microvilli, which increase surface area for absorption.
text: Microvilli on the apical surface increase its surface area.
text: The microvilli increase the surface area for the absorption.