Assertion: vasoconstrictor | /r/HasProperty | any substance
Facets:
Source sentences:
text: A vasoconstrictor, also called vasopressor, is any substance that causes the layer of smooth muscle in the blood vessels to contract, resulting in a shortening of the diameter of the blood vessel.
text: A vasoconstrictor, also vasopressor or simply pressor, is any substance that acts to cause vasoconstriction (narrowing of the lumena of blood vessels) and usually results in an increase of the blood pressure.