Question

The systemic veins function by:

Select one:
A. delivering oxygen-poor blood to the capillaries.
B. delivering deoxygenated blood to the capillaries.
C. returning deoxygenated blood back to the heart.
D. returning oxygen-rich blood back to the left atrium.

Answer 1

The systemic veins function by C) returning deoxygenated blood back to the heart.

Step-by-step explanation:

The systemic veins function by returning deoxygenated blood back to the heart. After oxygen-rich blood leaves the left ventricle, it travels to the body's organs and tissues. The tissues and organs absorb oxygen through the capillaries, and deoxygenated blood is collected from the tissues and organs by tiny veins, which then flow into bigger veins and eventually into the inferior vena cava and superior vena cava, returning the blood back to the right atrium of the heart.