Community for Volunteer Blood donation for the needy!!

Please ask the importance of Blood for those who wondered to many blood banks in a pain and agony, when their loved ones are at labour room in the hospital striving for life either while delivery or after meeting with fatal accident? it was high time the blood banks made more demand for the required blood of particular group and the painful part is even money at many many times does not give life?!! The blood donation of just under 470mls, which works out at no more than 13 per cent of your blood volume. After donation, your body has an amazing capacity to replace all the cells and fluids that have been lost. Take red cells. Millions of them are being made and dying every second. When you give blood you lose red cells and the body needs to make more to replace them. Special cells in the kidneys, called peritubular cells, sense that the level of oxygen in the blood has decreased (due to the loss of red cells) and start secreting a protein called erythropoietin. This passes through the bloodstream until it reaches the bone marrow (the soft fatty tissue inside the bone cavities). The bone marrow produces stem cells, the building blocks that the body uses to make the different blood cells – red cells, white cells and platelets. The erythropoietin sends a message to the stem cells telling more of them to develop into red blood cells, rather than white cells or platelets. Your body makes about two million new red cells every second, so it doesn’t take long to build up stores of them again. What about your white cells and platelets? A number of other messenger proteins also stimulate the production of these cells in the bone marrow, and over the next few days levels return to normal.[Content from a Researcher]