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Physiology › View

In what phase of the heart contraction is the volume of blood in ventricles the GREATEST?

A. right after atrial contraction

B. right before atrial contractio

C. in the middle of ventricular ejection

D. in the middle of ventricular filling

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Human Circulatory System › View

The five main parts of the circulatory system are?

A. heart, blood, nutrients, flakes, skin

B. heart, blood, valves, crust, mantle

C. heart, blood, veins, arteries, capillaries

D. heart, blood, cells, skin, nerves

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