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1- arteries have a thicker tunica media ( i.e. smooth muscle layer) baing pulsatile while veins being non-pulsatile do need smooth muscles in their wall just to maintain the tone or to adjust the size of lumen.
2- thinner walls of veins with more elasticity give them more compliance and thus they can store more blood serving the function of blood reservoirs.
N.B. exchange of nutrients, gases and fluids occurs only in capillaries thus it has nothing to do with the thickness of arterial or venous walls.
Wiki User
∙ 13y ago
Wiki User
∙ 15y agoActually it is the artery which has a thicker wall. The vein however has a thin flexible wall to contract and push the blood forward.
Wiki User
∙ 12y agoBecause the pressure of the blood is lesser in the veins and the muscular layer of the veins is thinner.
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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.
What is the cross section of arteries and vein?
A cross section of a vein shows a thinner wall than that of the artery, and shows one-way valves. A cross section of an artery shows a thicker, more muscular wall and no valves.
Does vena cava or aorta have thicker walls?
The aorta has thicker walls as it is an artery not vein.
Is Artery more thicker than vein?
the wall of an artery is usuallythicker that the wall of a 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.
Is the artery bigger than a vein?
No the veins are bigger than the artery
Why pulmonary is an artery rather than vein?
in our body there are both, pulmonary artery and pulmonary vein
Why are artery walls thicker than vein?
Because the blood flowing through them is at a much higher pressure, therefore they need to be thicker to withstand more pressure.
Why the artery has a thick layer muscle then vein?
Because there is more pressure on the artery wall (from the heart) than that of the 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.
Is P02 of pulmonary veins higher than the pulmonary artery P02?
PO2 is higher in the pulmonary vein than it is in the pulmonary artery. It is the only place in the body where the oxygen level is higher in the vein than in the artery.
