The blood hammer phenomenon is a sudden increase of the upstream blood pressure in a blood vessel (especially artery or arteriole) when the bloodstream is abruptly blocked by vessel obstruction. The term "blood-hammer" was introduced in cerebral hemodynamics by analogy with the hydraulic expression "water hammer," already used in vascular physiology to designate an arterial pulse variety, the "water-hammer pulse."
Famous quotes containing the words blood and/or hammer:
“We, the soldiers who have returned from battles stained with blood; we who have seen our relatives and friends killed before our eyes; we who have attended their funerals and cannot look in the eyes of their parents; we who have come from a land where parents bury their children; we who have fought against you, the Palestinians—we say to you today, in a loud and a clear voice: enough of blood and tears. Enough.”
—Yitzhak Rabin (1922–1995)
“At the door of every happy person there should be a man with a hammer whose knock would serve as a constant reminder of the existence of unfortunate people.”
—Anton Pavlovich Chekhov (1860–1904)