How do blood cells receive oxygen?

See below: The air we breathe in has about 21% oxygen. It reaches deep in the lung and permeates the lining of the lung and blood vessels and dissolves in the liquid part of blood. From the liquid part of blood, it binds hemoglobin in the red cells. The red cells carry the oxygen for use by all organs in the body. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk prodFor good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex, if you have sex.