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to protect the blood
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∙ 12y ago
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What is a thin muscle vessel?
A vein. Arteries have additional muscular layers to withstand the higher pressures of blood leaving the heart, veins lack this layer due to low-pressure environments.
What are the three parts of blood vessels and their functions?
There are three layers in arteries and veins. The inner layer is the tunica intima, and it is very thin. The middle layer is the tunica media, and it's the muscular layer. For that reason, it's much thicker in arteries than in veins. The outer layer is the tunica adventitia, and is mostly connective tissue with some nerves.In contrast, capillaries don't have all three layers. They need to be thin to allow oxygen and other substances to pass to tissues.The tunica intima provides a layer that allows substances to move through. The muscular layer allows the vessel to change its diameter. The tunica adventita provides protection and connection.
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.
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.
Do arteries or veins depend on the respiratory and muscular pumps?
Veins.
How thick are the walls of capillaries compared to those of arteries and veins?
Arteries and veins have much thicker walls compared to capillaries. The largest arteries and veins have walls up to 5 mm thick, while capillaries have walls that are only one cell layer thick.
What structure carries blood in the process of circulation?
You have blood vessels to carry blood to tissues. You have muscular arteries and thin veins along with the very thin capillaries. Capillaries are very thin individually, but together they dominate the cut surface area.
What is the name of the thin layer that surrounds the earth?
If you mean, thin layer of air, or thin gaseous layer surrounding the earth then the answer is; Atmosphere. But if not, then the other thin layer of earth is; The crust, but its a solid layer.
What are the layers that make up the wall of an artery?
Arteries actually have 5 layers, it is the veins that have 3. Arteries have: -the Outer coat -Elastic layer -Middle coat (thin) -Another elastic layer -Endothelium
Which blood vessel have thin walls and contain valves?
Veins
The muscular layer of the heart is called the musculoskeletal layer true or false?
The myocardium is not the innermost layer of the heart, the endocardium is.
Which depends on the respiratory and muscular pumps arteries or veins and Why?
arteries
