By Dilated Blood Vessels?

Vasodilation refers to the widening, or dilation, of the blood vessels. It is a natural process that increases blood flow and provides extra oxygen to the tissues that need it most. In some cases, doctors may deliberately induce vasodilation as a treatment for certain health conditions.

What is the medical term for dilated blood vessels?

Vasodilation, or the widening of blood vessels, happens naturally in your body when an increase in blood flow to tissues in your body is needed.

What causes blood vessels to dilate or constrict?

Blood vessels are automatically controlled by chemical signals in the body that tell the smooth muscles to constrict or dilate (widen). The nerve chemical messengers and hormones that tell blood vessels to constrict include: norepinephrine. epinephrine.