Which of the following is the function of the superior vena cava?
a. It takes oxygenated blood to the organs and muscles of the body.
b. It drains blood coming from the head and from the veins coming from the arms.
c. It prevents the backflow of blood.
d. It drains blood coming from the lower limbs and organs.
b. It drains blood coming from the head and from the veins coming from the arms.
The superior vena cava drains blood from the head and veins coming from the arms into the right atrium of the heart.
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