Maximum surface area of the circulatory syste | vedclass

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(B) Capillaries are the microscopic and smallest blood vessels in the circulatory system.Their walls are extremely thin,consisting only of a single la

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Capillaries

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(B) Capillaries are the microscopic and smallest blood vessels in the circulatory system.Their walls are extremely thin,consisting only of a single layer of endothelium (tunica interna).Due to their vast branching and dense network formation (capillary beds) within tissues,they provide the largest total cross-sectional surface area among all blood vessels.This extensive surface area is crucial for the efficient exchange of gases,nutrients,and waste products between the blood and the surrounding tissues.

Maximum surface area of the circulatory system is seen in

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