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Oxygen is transported throughout the body via hemoglobin in the red blood cells.
Oxygen transport and exchange provide the necessary oxygen to the body. This process is called respiration. Air is breathed in through the mouth and nose and after various processes it enters the blood through diffusion. The oxygen enters the red blood cells and in exchange carbon dioxide is taken out.
Oxygen levels in the blood are directly related to the alveoli. The alveoli increase the surface area of the lungs. For example, if a person has pulmonary disease then it means they have a decreased surface area for oxygen exchange. This in turn would mean lower blood oxygen levels.
Oxygen is transported through the body in our blood. Our blood is made up of plasma. Within the plasma are red blood cells, white blood cells, and platelets. The red blood cells are formed in our bone marrow and are very important in oxygen transportation. Red blood cells contain hemoglobin which is what gives these cells their color. In our lungs the concentration of oxygen is high and this is where oxygen attaches to the hemoglobin. As blood passes through the lungs, the hemoglobin picks up oxygen because of the increased oxygen pressure in the capillaries of the lungs While attached to the hemoglobin, the oxygen makes a circuit through the body. During this circuit it is released in the body tissues where it is at a low concentration. During this circuit deoxygenated blood is returned to the lungs.
Oxygen is transported in the blood to all body tissues by red blood cells(erythrocytes). The hemoglobin molecule is part of the erythrocytes. Hemoglobin is composed of iron(Fe) and a heme group. Oxygen is vital to all body tissues and all tissues must have a constant supply of O2 to survive. When tissues are deprived of O2, they die.
Iron deficiency anemia is a condition in which the Fe level in the vascular system is low. If you have low Fe levels your body can not manufacture hemoglobin as needed thus your oxygen carrying capacity is diminished. This condition is detrimental to the cells of your body.
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