blood vessels

can occur when a spasm of the blood vessels is caused by exposure to cold or by strong emotion

A prefix, or combining form, in numerous compounds, usually relating to seed or blood vessels, or to something contained in, or covered by, a vessel.

n a series of X rays representing the action of the heart and its blood vessels after the injection of a radiopaque substance

the formation of new blood vessels

an X-ray representation of blood vessels made after the injection of a radiopaque substance