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Which of the following is a difference between arteries and veins?
artery walls have more elastic tissue and smooth muscle than veins,
What is the amount of muscle in veins and arteries?
The amount of muscle in veins and arteries varies in the sense that arteries are more muscular than veins to give them extra elasticity and strength to deal with surges of blood.
Do arteries feed the veins?
Hmm; in a sense, yes. A more complete understanding would have arteries feeding capillaries, which feed the muscle or organ fresh blood, which is returned to the circulatory system by veins. Arteries carry oxygenated blood; veins return the now oxygen-depleted blood to the lungs, then heart, and back to the arteries, in brief.
Contrast the structure of veins and arteries for thickness of muscle and elastic tissue?
The more pressure it uses, the thicker the walls will be. Veins have very low pressure which means they have thin walls and vice/versa for arteries which have a higher pressure and thicker walls than veins.
List 3 differences between arteries and veins?
1) Arteries carry blood away from the heart while veins carry blood to the heart. 2) Arteries have thick and muscular walls (as they have to endure higher pressure) whereas veins have thin and slightly muscular walls. 3) Arteries have no valves, while veins have valves. 4) Arteries (in the post-fetal human) carry oxygenated blood except for the pulmonary arteries. Veins (in the post-fetal human) carry de-oxygenated blood except for the pulmonary veins.
What layer of an artery consists mostly of smooth muscle?
Arterial walls are more muscular than the walls of veins. This muscle is smooth involuntary muscle.
What contains more oxygen veins or arteries and why?
arteries is the oxygenated
How is the structure of arterioles different from that of arteries?
The wall of the arterioles contain less elastic fibers but more smooth muscle cells than that of the aorta and arteries.
Which of the blood vessel has more muscle?
Arteries have more muscular walls than veins and capillaries. This allows the force needed to move blood to the entire body.
Are veins or arteries more superficial in the body?
Veins tend to be more superficial, meaning they lie closer to the surface of the skin. Arteries usually, but not always, run deeper in the tissue than veins.
Why must you massage towards the heart?
If you massage towards the heart it promotes venous blood return back to the hart so that it may get re-oxygenated. Arteries are lined by smooth muscle and they have valves where as the veins are a more passive system, so sometimes they need help.
Why do arteries have more smooth muscle than vei?
capillaries by definition don't have any smooth muscle in their walls. They are simply made of one layer of endothelial cells.
