How do red blood cells know where to deliver their cargo?

The main cargo of RBCs is oxygen. Each RBC has 280 million hemoglobin molecule and each hemoglobin combines with 4 molecules of oxygen . Delivery of oxygen in tissues is dependent on certain factors. read more

The main cargo of RBCs is oxygen. Each RBC has 280 million hemoglobin molecule and each hemoglobin combines with 4 molecules of oxygen . Delivery of oxygen in tissues is dependent on certain factors. When CO2 moves into blood from cells, this increases partial pressure of CO2 in the blood and decreases the ph of blood . read more

Red Blood Cells - Red blood cells are by far the most abundant cells in the blood. Learn about the production of red blood cells, properties of red blood cells and functions of RBCs. read more

According to the American Red Cross, adults have around 25 trillion red blood cells in circulation at any given time. Due to their lack of a nucleus and other organelles, adult red blood cells can not undergo mitosis to divide or generate new cell structures. When they become old or damaged, the vast majority of red blood cells are removed from circulation by the spleen, liver, and lymph nodes. read more