How do the arteries and veins differ from each other?

Question

How do the arteries and veins differ from each other?

Answer 1

One carries oxygenated blood one carries deoxygenated blood, except in the cardiac and cardiopulmonary junctions.

Answer 2

Arteries carry oxygenated blood to the extremities and organs; veins carry the de-oxygenated blood back to the heart and eventually to the lungs.

Answer 3

In arteries oxygenated blood flows from the heart to the organs and in veins deoxygenated blood flows from the organs back to the heart!

Answer 4

in the vascular system they both have a big importance but in opposite ways of function.

arteries carry blood away from the heart, most arteries carry oxygenated blood (except for pulmonary and umbilical arteries) and they are made up of three layers; outer layer, middle muscular elastic layer, and inner layer.

veins have one thick layer, they return deoxygenated blood to the heart.  

Answer 5

Arteries have thicker walls to withstand higher pressures.

Veins have valves to stop blood flowing back.

Answer 6

In very simple terms, arteries carry oxygen-rich blood from the heart to other parts of the body whereas veins carry oxygen-depleted blood from other parts of body back to heart. Arteries are thicker than veins. Arteries have thicker walls as they are more muscular to withstand the strong pump from the heart. Veins have thinner and less muscular walls.

Answer 7

My arteries carry blood away from my heart.  My vein carries s***n away from my testicles.

Answer 8

ARTERIES are blood vessels that carry blood away from the heart. In general (Not always!!! as some people think) arteries carry oxygenated blood. The two exceptions are the pulmonary artery and the umbilical artery (umbilical artery is in the foetus). VEINS are blood vessels that carry blood toward the heart. Venous blood is poor in oxygen , with the exceptions being the pulmonary vein and the umbilical vein (umbilical vein in the foetus).

The structure of arteries and veins also differ. ARTERIES are elastic and thick, because they need to transport high-pressure blood. The walls of arteries contain smooth muscle fibre that contract and relax under the instructions of the sympathetic nervous system. The walls of VEINS consist of three layers of tissues that are thinner and less elastic than the corresponding layers of aerteries. Veins have much thinner walls, because the blood they carry is under low pressure.

VEINS have valves that aid the return of blood to the heart and prevent blood from going backwards. ARTERIES do not have valves, except for the semi-lunar valves of the pulmonary artery and the aorta.

ARTERIES have relatively narrow lumens, VEINS have relatively wide lumens.