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The average pressure pumped through the aorta is about 120mmHg during systole. The average pressure pumped through the pulmonary artery is only 9-18mmHg. The reason for this is simply because of the volume of blood, the resistance to flow by the different pathways they take and so on. But the main point is that to maintain functional integrity and not hypertrophy or cause aneurysm, the aorta must be much thicker with a pressure that great.
What else can I help you with?
Compare the thickness of the walls of the superior and inferior vena cava and the aorta?
The aorta has significantly thicker walls than the superior and inferior venae cavae as the aorta is an artery that must respond to significant intraluminal pressures whereas the venae cavae are veins that have minimal intraluminal pressure.
What is the difference between the walls of the renal artery and the hilus region?
The renal artery is off to the side of the abdominal aorta, supplying and carrying a large portion of total blood to the kidneys. The helium is located above and behind the lung, and is where the pulmonary artery, superior and inferior pulmonary veins, lymphatic vessels, and bronchus with bronchial veins and arteries enter and exit.
What is the thickness of an artery's walls?
It all depends on which one you are comparing, because they come in large ones like the Aorta, down to tiny ones called arterioles. In any case, they are thicker than their corresponding vein.
Which layer of the artery wall thickens most in atherosclerosis?
The tunica media is the thickest layer of of an artery
Is the walls of a artery thicker than a vein?
Veins have thin walls because blood that flows through them is usually low in pressure while the blood that flows through the arteries are usually of high pressure. The walls are thick to prevent bursting.
Does vena cava or aorta have thicker walls?
The aorta has thicker walls as it is an artery not vein.
What vessel is the blood pumped from the left ventricle?
Blood is pumped by both the left and right ventricles. Blood pumped by the right ventricle is to the lungs only while the left ventricle pumps to the rest of the body. This is why the walls of the left ventricle are significantly thicker than the walls of the right.
Compare the thickness of the walls of the superior and inferior vena cava and the aorta?
The aorta has significantly thicker walls than the superior and inferior venae cavae as the aorta is an artery that must respond to significant intraluminal pressures whereas the venae cavae are veins that have minimal intraluminal pressure.
What is the significance of the difference in thickness between the aorta and the pulmonary trunk?
To put it simply: The blood in the aorta has to go all around the body. Blood in the pulmonary trunk has to go all around the lungs. The body is, obviously, larger than the lungs. This means blood going around the body needs to be "pushed" more. This is because there is more resistance. For example, it's harder to push a car for 1 mile, then it is to push it 1 metre. Because the blood has to be pushed more, the heart (left ventricle) pumps it out at a higher pressure. Similarly, because the blood going around the lungs doesn't need to go so far, the heart (right ventricle) pumps it out at a lower pressure. Because the blood in the aorta is at higher pressure than the pulmonary trunk, it needs to have thicker walls. For example a fire hose is thicker than a garden hose because it needs to transport water at a higher pressure. The aorta contains large amount of smooth muscle and elastic tissue to help it cope with the high blood pressure.
What is the difference between the walls of the renal artery and the hilus region?
The renal artery is off to the side of the abdominal aorta, supplying and carrying a large portion of total blood to the kidneys. The helium is located above and behind the lung, and is where the pulmonary artery, superior and inferior pulmonary veins, lymphatic vessels, and bronchus with bronchial veins and arteries enter and exit.
Are the walls in arteries thicker than the walls in veins?
The arterial walls are thicker because they need to withstand the pressure coming from the heart.
What is the thickness of an artery's walls?
It all depends on which one you are comparing, because they come in large ones like the Aorta, down to tiny ones called arterioles. In any case, they are thicker than their corresponding vein.
Is the wall of an artery thicker than that of a vein?
Yes. For equivalently sized arteries and veins, arterial walls are significantly thicker.
Which layer of the artery wall thickens most in atherosclerosis?
The tunica media is the thickest layer of of an artery
In comparing a parallel artery and vein you would find what?
In comparing a parallel artery and vein, you would find that the vein had thinner walls and a darker color. The artery would have thicker, more muscular walls and a brighter red color.
Is the walls of a artery thicker than a vein?
Veins have thin walls because blood that flows through them is usually low in pressure while the blood that flows through the arteries are usually of high pressure. The walls are thick to prevent bursting.
Why is the pulmonary artery a vessel not a vein?
The pulmonary artery carries deoxygenated blood from the heart to the lungs for oxygenation, while veins typically carry deoxygenated blood back to the heart. The pulmonary artery is specifically structured to withstand high pressure from the heart's pumping action as it sends blood to the lungs, unlike veins that have thinner walls and lower pressure.
