Assertion: bat | /r/CapableOf | support blood flow
Facets:
value: back to the heart
type: TRANSITIVE-OBJECT
value: with this pumping action
type: MANNER
value: in bats
type: LOCATION
value: actively
type: MANNER
Source sentences:
text: In most mammals, the walls of the veins provide mainly passive resistance, maintaining their shape as deoxygenated blood flows through them, but in bats they appear to actively support blood flow back to the heart with this pumping action.