What is the term for the exchange of nutrients and wastes between blood and tissue cells?

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Multiple Choice

What is the term for the exchange of nutrients and wastes between blood and tissue cells?

Capillary exchange describes how nutrients and wastes move between the blood in tiny capillaries and surrounding tissue cells. The capillary walls are very thin, so substances like glucose, amino acids, and oxygen diffuse from blood into tissues, while carbon dioxide and other wastes diffuse back into the blood to be carried away. This microcirculation process is essential for skin health, supplying cells with what they need and removing byproducts of metabolism. Gas exchange is specific to the lungs where oxygen and carbon dioxide pass between air and blood, and blood circulation is the overall movement of blood through vessels, not the direct transfer at the tissue level. Nutrient exchange alone would miss the waste removal that capillary exchange handles as part of the same process.

Capillary exchange describes how nutrients and wastes move between the blood in tiny capillaries and surrounding tissue cells. The capillary walls are very thin, so substances like glucose, amino acids, and oxygen diffuse from blood into tissues, while carbon dioxide and other wastes diffuse back into the blood to be carried away. This microcirculation process is essential for skin health, supplying cells with what they need and removing byproducts of metabolism. Gas exchange is specific to the lungs where oxygen and carbon dioxide pass between air and blood, and blood circulation is the overall movement of blood through vessels, not the direct transfer at the tissue level. Nutrient exchange alone would miss the waste removal that capillary exchange handles as part of the same process.

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