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Biology

11th -

12thgrade

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Circulatory System

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25 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Atria pumps blood to the:

    Arteries

    Body cavities

    Veins

    Ventricles

  • 2. Multiple Choice
    30 seconds
    1 pt

    The only artery in humans that carries deoxygenated blood is the:

    Pulmonary artery

    Renal artery

    Aorta

    Carotid artery

  • 3. Multiple Choice
    30 seconds
    1 pt

    The direction of blood flow through the human body is maintained by:

    The elasticity of the vein walls

    The pump action of the heart

    Muscular contractions

    A system of valves

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