reflex vasodilatation

reflex vasodilatation

Blood vessel dilation caused by stimulation of its dilator nerves or inhibition of its constrictor substance or nerves. This can be done by stimulating the sensory reflex arc.
See also: vasodilatation
References in periodicals archive ?
Mechanisms that can increase the risk of postoperative orbital hemorrhage include: 1) traction on orbital fat tearing deep orbital vessels, 2) reflex vasodilatation after use of epinephrine, 3) increased venous pressure from Valsalva maneuvers, and 4) blood dyscrasias or the use of aspirin, Coumadin, or nonsteroidal antiinflammatory drugs.