The velocity of blood flow is ________. A) in direct proportion to the total cross-sectional area of the blood vessels B) slower in the arteries than in capillaries because arteries possess a relatively large diameter C) slower in the veins than in the capillaries because veins have a large diameter D) slowest in the capillaries because the total cross-sectional area is the greatest

The velocity at which blood flows in the blood vessels is inversely proportional to the total cross-sectional area of the blood vessels present in the body. This means that if the cross sectional area of the vessels low, then there will be high rate of blood flow, and vice versa. This blood flow is minimum in the case of capillaries, where it gets enough time for the exchanging of essential nutrients as well as gases.

Thus, the correct answer is option (D).

ayfat23 ayfat23 · Answer 2 · 2021-11-30T14:24:52+01:00

Statement that explains the velocity of blood flow is :D:slowest in the capillaries because the total cross-sectional area is the greatest.

The velocity of blood flow has it's slowest movement in capillaries and the velocity is inversely proportioned to the total cross-sectional area of blood vessels.

There would be decrease in the velocity of flow if there is an increase in total cross-sectional area of the vessels.

Therefore, option D is correct.

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