Question

The blood in an artery flows faster and at higher pressure. Explain why.

Answer 1

Arteries carry blood from the heart to the tissues. ... The blood pressure drops after the blood passes through the capillaries, and with a larger lumen, reducing the resistance to allow blood flow at a lower pressure, veins have a lower blood pressure. Hence, arterial blood pressure is higher than venous blood pressure.

Answer 2

The blood in an artery flows faster and at higher pressure. Its because pressure is a measure of the force that the blood exerts against the vessel walls as it moves the blood through the vessels. Like all fluids, blood flows from a high pressure area to a region with lower pressure. Blood flows in the same direction as the decreasing pressure gradient: arteries to capillaries to veins.Moreover the arteries have thicker smooth muscle and connective tissue than the veins to accommodate the higher pressure and speed of freshly pumped blood. The veins are thinner walled as the pressure and rate of flow are much lower.

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