Select the letter of the choice that best completes the statement. The blood supply returns from the legs through thea. saphenous vein.b. external jugular vein.c. superior vena cava.d. hepatic vein.
Select the letter of the choice that best completes the statement. The blood supply returns from the legs through the
a. saphenous vein.
b. external jugular vein.
c. superior vena cava.
d. hepatic vein.
Throughout the body, blood vessels transport blood. Through arteries, blood is transported away from the heart. Veins carry blood back to the heart. Capillaries distribute and absorb oxygen, nutrients, and other substances to and from bodily cells and tissues. Capillaries also link artery and vein branches. The tunica externa, tunica media, and tunica intima are three layers that make up the walls of most blood arteries. The lumen, a hollow interior through which blood flows, is surrounded by these layers.
The main function of the great saphenous vein is to evacuate deoxygenated blood from the foot, leg, and knee (closer to the surface). This is returned to the heart and lungs, where oxygen and nutrients are replenished before being delivered to the remainder of the body.
The external jugular vein is a shallow vein in the neck that drains blood from the parotid gland, the majority of the scalp, and the side of the face before returning to the heart. When other large veins, such as the internal jugular vein, are squeezed or obstructed, it also helps with blood flow down from the head.
Blood from the head, neck, arms, and chest is carried via the superior vena cava.
The inferior vena cava receives deoxygenated blood from the liver via hepatic veins.
Hence, option a is correct that is saphenous vein and the remaining options b, c and d are incorrect.
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