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To symbolize that arteries carry blood that's rich in oxygen while veins carry blood that's low on oxygen.

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Q: Why are arteries usually drawn as red in diagrams while veins are drawn as blue?
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What is one of the smallest blood vessels which connect the arteries and the veins is a?

The capillaries are the smallest blood vessels and are usually found between arteries and veins.


Name three blood vessels?

the three blood vessels are the Veins capillaries Arteries the arteries.


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.


What do arteries and veins drain?

Arteries drain (pump blood) into veins. Veins drain into your lungs and heart to be re-oxygenated. (This is not true for veins and arteries to and from your lungs.)


What is the difference between the blood in the arteries and the blood in the veins?

Veins do not pulsate Arteries pulsate Veins can easily collapse Arteries do not collapse (except in shock) Veins contain valves Blood pressure is low in the veins and higher in the arteries


What material surrounds veins and arteries?

Cellulose is what surronds veins and arteries.


What is the name of the blood vessel which takes blood from the body?

Typically, it is drawn from the antecubital vein, in the arm. It can be drawn from other veins, as well, including dorsal veins in the hands and feet, and from ports inserted into larger veins, for instance.


What is the difference between muscle in veins and arteries?

Thee difference between muscle in veins and arteries is that muscles of arteries are thicker compared to those of veins.


What two ways are veins structurally different from arteries?

blood travels away from the heart through arteries and blood travels to the heart through the veins


What are the main kinds of blood vessels annd what functions do they perform?

The main kind of blood vessels are Veins, Arteries, and Capillaries. Arteries carry oxygenated blood to other organs. Veins carry blood with carbon dioxide back to the heart. Capillaries connect Veins and Arteries and let oxygen out to the organs and carbon dioxide in to the veins.


Is the artery the same size as your vein?

Arteries and veins can be different sizes, because large arteries branch into smaller arteries, which branch into capillaries. These capillaries branch into small veins, which branch into large veins. So yes, they can be (and usually are) the same size if (I am surmising this) they are the same distance from the capillaries.


Are veins thicker than arteries?

The tunica media is thicker in arteries than in veins.