Blood The Common Vein Copyright 2020 cell red cells normal blood Davidoff art copyright 2009 all rights reserved 93651pb20.8s Red Cell in the Blood Stream“Red Cell in the Blood Stream” shows a single red cell floating down the river of plasma. The deformability and biconcave shape of the red cell is essential to its function. The red cell is about 7.5 to 8.5μm in diameter and 1.5 to 2.0 μm in thickness. They lack a nucleus. There are about 20–30 trillion red cells in the body representing 25% of cells in the body. In contrast there are 7.4 billion people in the worldHemoglobin is the functional marvel in the red cell. The hemoglobin in the red cells take up oxygen in the lungs and transport it to the cells via the capillaries. The approximately 8μm cells have to fit into the approximately 5μm capillary. The red cells deform and release oxygen into the tissues .by Ashley Davidoff MD Hemoglobin in the Red Cellby Ashley Davidoff MD Red Cell with Hemoglobin Responsible for the Transport of Oxygen and Carbon Dioxideby Ashley Davidoff MD Hemoglobin in the Red Cellby Ashley Davidoff MD Time Aging and Deathby Ashley Davidoff MD Time Aging and Deathby Ashley Davidoff MD Transport of Oxygen by the Red Cellby Ashley Davidoff MD MacrophageAshley Davidoff MD MacrophageAshley Davidoff MD MacrophageAshley Davidoff MD MacrophageAshley Davidoff MD MacrophageAshley Davidoff MD MacrophageAshley Davidoff MD