Assertion: periosteum | /r/CapableOf | serve as gatekeeper
Facets:
value: for flow of fluids
type: PURPOSE
value: for mass and cell transport
type: PURPOSE
Source sentences:
text: The periosteum is bone's bounding membrane: it serves as a gatekeeper for flow of fluids and hence mass and cell transport into and out of bone, yet its permeability properties are currently uncharacterized.
text: The periosteum is bone's bounding membrane: it serves as a gatekeeper for flow of fluids and hence mass and cell transport into and out of bone, yet its permeability properties are currently uncharacterized.