Blood Flow in the Capillaries Is

question 66

Multiple Choice

Blood flow in the capillaries is

• A) slower because there are more capillaries and they have a greater total cross-sectional area than arterioles.
• B) faster because they are smaller and blood must speed up to get through.
• C) the same speed as in the arteries and veins since they are the input and output points.
• D) highly variable due to different tissues, but must average the same as speeds in arteries and the veins.
• E) slower than in other blood vessels because of the presence of valves.

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