What are the composition of red blood cells, and white blood cells?
Red Blood Cells: The red blood cells are also known as erythrocytes. The red blood cells have a unique appearance. They have been described as looking like a donut because they are thinner in the center and thicker around the edges. They are very flexible with the ability to twist and bend through the blood vessels. The red blood cells are only 1/25,000 of an inch in size. A major function of the red blood cells is to carry oxygen to all the tissues from the lungs. The red blood cells than transport the carbon dioxide from the cells because of breaking down the nutrients The reason the erythrocytes are known as red blood cells is because of a substance called hemoglobin. Hemoglobin is composed of simple protein and iron pigments and when combined with oxygen their color becomes a bright scarlet. Red blood cells are made in the red bone marrow. In infants every bone in their body produces red blood cells. In the adult the red blood cells can be produced in the thoracic bones, vertebrae,
