Arteries are distinguished from veins based on all of the following features except
A)the direction of blood flow relative to the heart.
B)the structure of their walls.
C)the amount of oxygen present in the blood.
D)the blood pressure.

Question

Quizplus · Accepted Answer

Arteries and veins are distinguished based on the direction of blood flow, the structure of their walls, and the blood pressure. Arteries typically carry oxygenated blood away from the heart, while veins carry deoxygenated blood back to the heart. The walls of arteries are thicker and more elastic than veins, allowing them to withstand the high pressure of blood flow. Veins have valves to prevent backflow of blood, while arteries do not. The amount of oxygen in the blood is not a distinguishing feature between arteries and veins.

Arteries Are Distinguished from Veins Based on All of the Following