Maximum amount of oxygen is exchanged from th | vedclass

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(B) The exchange of gases between the blood and the tissues occurs through the systemic capillaries. Oxygenated blood reaches the tissues via systemic

Vedclass · Accepted Answer

capillaries surrounding tissue cells

Vedclass · Answer

(B) The exchange of gases between the blood and the tissues occurs through the systemic capillaries. Oxygenated blood reaches the tissues via systemic arteries,which branch into a network of capillaries. Since the partial pressure of oxygen $(pO_2)$ is lower in the tissue cells compared to the blood in the capillaries,oxygen dissociates from oxyhemoglobin and diffuses into the tissues. Therefore,the maximum exchange of oxygen from the blood to the cells occurs in the capillaries surrounding the tissue cells.

Maximum amount of oxygen is exchanged from the blood in the . . . . . . .

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