what are pressors
Pressor: Causing a rise in blood pressure. A pressor base is a substance (chemically classified as a base) capable of raising the blood pressure. A pressor nerve is a nerve that, when stimulated, increases the blood pressure.A pressor reflex is a nerve reflex that constricts arterioles (small blood vessels) and thereby increases the blood pressure.A pressor substance is any substance that elevates arterial blood pressure. pressor reflex is a nerve reflex that constricts arterioles (small blood vessels) and thereby increases the blood pressure. A pressor substance is any substance that elevates arterial blood pressure.