oxygen store, the total quantity of oxygen stored in various body compartments, including the lungs, arterial and venous blood, and tissues. In a human weighing 70 kg, blood contains about 800 mL of oxygen as oxyhemoglobin, muscles contain about 150 mL as oxymyoglobin, alveolar gas contains a few hundred milliliters, and about 50 mL is dissolved in the tissues.
