title: A grating laser microscope for measurements of blood flow velocity in microvessels.
abstract: A velocimeter for measurements of blood flow velocity in microvessels was constructed with a microscope, a grating, a photomultiplier and a wave-period measuring circuit. A differential detection system seemed to be useful when the probing area was extremely small. A pulsating flow velocity contour and the velocity reduction caused by an application of noradrenaline were on-line recorded in an arteriole of foot web of frogs.
mesh_terms: D000818:Animals; D001160:Arterioles / Q000187:drug effects / Q000502:physiology; D001783:Blood Flow Velocity; D005528:Foot / Q000098:blood supply; D007834:Lasers; D008833:Microcirculation / Q000502:physiology*; D008853:Microscopy; D009638:Norepinephrine / Q000494:pharmacology; D012212:Rheology; D014982:Xenopus laevis
chemical_list: D009638:Norepinephrine