Question

Why are Capillaries the site for exchange of materials

Answer 1

Answer :

Of all the blood vessels, only capillaries have walls thin enough to allow the exchange of materials between cells and the blood. ... Capillaries are essential for the delivery of oxygen to the tissues and the exchange of nutrients between blood and interstitial fluid surrounding the cells.

Answer 2

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Of all the blood vessels, only capillaries have walls thin enough to allow the exchange of materials between cells and the blood. ... Capillaries are essential for the delivery of oxygen to the tissues and the exchange of nutrients between blood and interstitial fluid surrounding the cells.

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