The motion of the plasma between the red cells in the bolus flow.
D000818:Animals; D001783:Blood Flow Velocity; D001794:Blood Pressure; D001809:Blood Viscosity; D002196:Capillaries / Q000502:physiology*; D004285:Dogs; D004912:Erythrocytes / Q000502:physiology*; D006439:Hemodynamics; D008962:Models, Theoretical; D010949:Plasma / Q000502:physiology*; D012212:Rheology