Jan 27, 2026
blood vessels and vinia
consists of three main classes of blood vessels—, veins, and —that together move blood, deliver oxygen and nutrients, and remove waste . Veins are the vessels that primarily , including the two larges...
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The superior and inferior vena cava are the two largest veins—often called the central veins or venae cavae—and they channel deoxygenated blood from the upper and lower parts of the body, respectively, directly into the right atrium of the heart.