Crossword Clue:

the dilatation of blood vessels also VASODILATATION

AnswerCrossword Clue
ARKSVessels also called broadhorns
AORTAEMajor blood vessels
AORTASBig blood vessels
VENOUSPertaining to blood vessels
CAVAEVenae ... (major blood vessels)
CAVAEVenae ... (large blood vessels)
HILUMArea where blood vessels enter an organ