Assertion: testicular vein's valve | /r/CapableOf | regulate blood flow
Facets:
value: into the main circulatory system
type: TRANSITIVE-OBJECT
Source sentences:
text: They usually occur when the veins develop weakened walls or poorly functioning valves, which regulate blood flow.
text: Caused by a defective or damage valve that regulates blood flow into the main circulatory system.