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Arteries carry blood away from the heart to the other parts of the body. Arteries also have thicker walls as the blood pressure is much higher having a closer proximity to the heart. Veins carry the blood back from the other areas of the body to the heart.
Simply put, an artery carries blood out of the heart, and a vein carries blood into the heart.
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Rene1) Veins carry deoxygenated blood to the heart. Arteries carry oxygen rich blood away from the heart.
2) Veins are under very little pressure; arteries are under a lot of pressure.
3) The walls of arteries are made of muscle so as to regulate blood pressure and the diameter of the artery. Veins have little one way valves in them to keep the blood going in the right direction.
Blood in the veins is actually heading back to the heart. If this blood is coming back from the body, the blood is deoxygenated as the oxygen has been used by the cells of the body. (In contrast, the blood in the pulmonary vein is oxygenated),
Blood in the arteries is leaving the heart. If this blood is going to the body, its oxygenated from the oxygen picked up in the lungs. (In contract, the blood in the pulmonary artery is deoxygenated).
Oxygenated hemoglobin gives blood its bright red color in the systemic arteries, while blood in systemic veins has more of a maroon color. Also, if you puncture a vein, the blood tends to ooze out because there is not much pressure. If you puncture an artery, the blood tends to squirt out more because the pressure created by the pumping of the heart is behind the blood.
The walls of the artery are generally thicker and their tunica media layer contains more smooth muscle and elastic fibres. When it is not opposed by blood pressure, the walls of the artery still contracts so arteries generally appear to be smaller in histological sections. As the endothelial lining of an artery cannot contract, an artery's endothelium is thrown into folders when it constricts and it gives it a pleated appearance. Veins do not have these folds.
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Is the aorta an artery or a vein?
it is a VEIN <3
What lies between the antecubital vein and the brachial artery?
your lungs.
What veins and arteries travel through the renal sinus?
segmental artery, renal artery, renal vein, arcule vein, interlobular vein, interlobular artery
Is Artery more thicker than vein?
the wall of an artery is usuallythicker that the wall of a vein.
Which bleeds more artery or vein?
Yes, because there is more pressure in the artery than in the vein so the artery has to be big enough to hold the pressure that's inside it.
