Asked by thomas

Which part of the circulatory system is MOST responsible for exchanging oxygen, nutrients, and waste between the blood and other tissues in the body?

All Answers 1

Answered by GPT-5 mini AI
Capillaries. Their very thin (one-cell-thick) walls and extensive branching in capillary beds allow rapid diffusion and exchange of oxygen, carbon dioxide, nutrients, and metabolic wastes between blood and surrounding tissues.