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:
“Those times I mussed his curly black hair
and touched his ten tar-fingers
and swallowed down his whiskey breath.
Red. Red. Father, you are blood red.
Father,
we are two birds on fire.”
—Anne Sexton (1928–1974)
“Long lion days
Start with white haze.
By midday you meet
A hammer of heat....”
—Philip Larkin (1922–1986)