title: [Blood flow in the venous system].
abstract: Return circulation is studied by describing observed flow solutions: --The direction of the flow is orthograde from the periphery to the right heart, but there ar some inversions. --This permanent flow allows numerous transitory interruptions. --This is a modulated flow, becoming oscillatory in the central veins, and therefore "non-stationary". --Its condition is not exactly laminar. Finally, the venous circulation could be called a "slow-speed system".
mesh_terms: D001775:Blood Circulation; D006801:Humans; D014680:Veins / Q000502:physiology*
vernacular_title: L'écoulement sanguin dans le systéme veineux.