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What are two major properties of arteries?
Arteries have thick, muscular walls that can withstand high pressure from the heart's pumping action. They also have a layer of smooth muscle that allows them to contract and dilate to regulate blood flow.
Why are some blood vessels more muscular than others?
The blood vessels that carry blood away from the heart, arteries, need to withstand the pressure exerted by the heart as it pumps to the blood to the lungs and to all the tissues of the body. These have thicker muscular walls, veins deal with far less pressure, so their muscular layer is thinner.
What do you say that larger lymph vessels are comparable to veins rather than arteries?
Veins have wider lumens than arteries. Veins have thin muscular walls since low pressured blood passes through veins. the walls of the veins however have the same components as in arteries, that is, they have a muscular wall, a connective tissue wall, an endothelium and a layer of elastic tissue. Since arteries experience higher pressured blood the muscular player is much thicker than the one in the veins. therefore, the lumen of the artery is much smaller than that of the vein. Therefore, since lymphatic materials must pass through lymph vessels having the materials being somewhat large, a wider lumen is needed, like that of the veins.
Why do you say that the larger lymph vessels are comparable to veins rather than arteries?
Veins have wider lumens than arteries. Veins have thin muscular walls since low pressured blood passes through veins. the walls of the veins however have the same components as in arteries, that is, they have a muscular wall, a connective tissue wall, an endothelium and a layer of elastic tissue. Since arteries experience higher pressured blood the muscular player is much thicker than the one in the veins. therefore, the lumen of the artery is much smaller than that of the vein. Therefore, since lymphatic materials must pass through lymph vessels having the materials being somewhat large, a wider lumen is needed, like that of the veins.
Why does the uterus have thick muscular walls?
The uterus has thick walls because a fertilized egg would need a thick lining in order to implant and begin to grow and develop. The uterus is sterile and has no bacteria present, however large quantities of debris and bacteria is brought into the uterus with the sperm. Therefore, the walls must be strong and muscular because uterine contraction has to occur to expel fluid, dead sperm and bacteria out from the uterus and through the open cervix.
Why do arteries?
Arteries are high-pressure vessels. However, this pressure is not constant. As the heart pumps blood into the arteries, the pressure dramatically increases. They must stretch to accommodate this change, or risk rupturing.
Is the brachial artery an elastic or muscular artery?
I think the external carotid to be an elastic artery.
Why do arteries stretch?
Arteries are high-pressure vessels. However, this pressure is not constant. As the heart pumps blood into the arteries, the pressure dramatically increases. They must stretch to accommodate this change, or risk rupturing.
Is Santa hot?
He must be in that thick costume...
What does it mean if you have black arteries?
it means you must give multiple animals sexual pleasures
Why is the artery thicker than a vein?
the artery walls must be thick to withold the pressure of the blood coming right from the heart. veins don't need that thick of walls because there is not as much pressure farther away from where the heart is located
In what blood vessel does blood travel on its way back to the heart?
Veins. Remember it this way, 'a' for away and 'a' for arteries. If arteries take blood away from the heart, then veins must take it to the heart.
